introductionPPT课件
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概述Briefintroductionppt课件
CN盐 a2SO效4 应0为.04主mol / L时，CNa2SO4 ，SPbSO4
2020/1/17
3. 酸效应(Solubility and pH)
溶液酸度对沉淀溶解度的影响称为～
讨论： 酸度对强酸型沉淀物的溶解度影响不
大， 但对弱酸型或多元酸型沉淀物的溶解
度影响较大 pH↓，[H+]↑，S↑
注： 因为酸度变化，构晶离子会与溶液中的H+或
OH-反应，降低了构晶离子的浓度，使沉淀溶解 平衡移向溶解，从而使沉淀溶解度增大
2020/1/17
图示 溶液酸度对CaC2O4溶解度的影响
CaC2O4
C2O42- + H+ HC2O4-+H+
Ca2+ + C2O42-
HC2O4H2C2O4
2020/1/17
1
C 2O42
[C2O42
]'
[C2O42
C2O42
]
[C2O42
] C2O42
S'
K
' SP
[Ca 2
][C2O42
]'
[Ca2 ][C2O42 ]
C2O42
K SP
C2O42
K SP
C 2O42
S'2
2020/1/17
Ba2与SO42等量反应的BaSO4沉淀溶解度为 S K SP 1.11010 1.0105 mol / L
200ml溶液中BaSO4沉淀的溶解损失为 1.0105 233.4 200 0.5mg 0.2mg
2020/1/17
2020/1/17
3. 酸效应(Solubility and pH)
溶液酸度对沉淀溶解度的影响称为～
讨论： 酸度对强酸型沉淀物的溶解度影响不
大， 但对弱酸型或多元酸型沉淀物的溶解
度影响较大 pH↓，[H+]↑，S↑
注： 因为酸度变化，构晶离子会与溶液中的H+或
OH-反应，降低了构晶离子的浓度，使沉淀溶解 平衡移向溶解，从而使沉淀溶解度增大
2020/1/17
图示 溶液酸度对CaC2O4溶解度的影响
CaC2O4
C2O42- + H+ HC2O4-+H+
Ca2+ + C2O42-
HC2O4H2C2O4
2020/1/17
1
C 2O42
[C2O42
]'
[C2O42
C2O42
]
[C2O42
] C2O42
S'
K
' SP
[Ca 2
][C2O42
]'
[Ca2 ][C2O42 ]
C2O42
K SP
C2O42
K SP
C 2O42
S'2
2020/1/17
Ba2与SO42等量反应的BaSO4沉淀溶解度为 S K SP 1.11010 1.0105 mol / L
200ml溶液中BaSO4沉淀的溶解损失为 1.0105 233.4 200 0.5mg 0.2mg
2020/1/17
2019年秋外研版高中英语必修一课件：M4 Introduction(共18张PPT)
live in
in the south… of…
in the suburb/ countryside
apartment
on the…floor of…
five-storey/five storeys
apartment block
…miles away from… be made of
local
stone
house on the water
tile-roofed house (瓦房)
Read about the homes of the two students. Do the match according to
the description.
P31 2
Now try to describe the homes of
Homework
Preview the new words and expressions on Page 32&33.
Useful patterns： I live in the city/ countryside of… I live with… We live… on the… floor of a… building. It is made of… about… miles away from…
Work in pairs and compare your homes.
thWehtiwchoosntuediesnmtsowreitshimthielahr etolpyoofurs? key words.
in the south of China live with… suburb a small apartment a five-storey apartment block
介绍冬奥会英语PPT课件
• China and the Winter Olympics
• Future prospects for the Winter Olympics
Introduction to the Winter 01 Olympics
Origin and Development
Origin
The Winter Olympics originated from the 1924 Winter Olympics in Chamonix, France Since then, the Winter Olympics have been held every four years to promote winter sports and cultural exchange among countries
The Winter Olympics was held in Lake Placid, USA
The Winter Olympics was held in Square Valley, USA
02
01
2018
The Winter Olympics was held in PyeongChang, South Korea
In recent years, China has become one of the most competitive counties in the Winter Olympics, ranking among the top medium winning counties
Vision and preparation for China to host the Winter Olympics
China has expressed its willingness to host the Winter Olympics, and has been actively preparing for it
• Future prospects for the Winter Olympics
Introduction to the Winter 01 Olympics
Origin and Development
Origin
The Winter Olympics originated from the 1924 Winter Olympics in Chamonix, France Since then, the Winter Olympics have been held every four years to promote winter sports and cultural exchange among countries
The Winter Olympics was held in Lake Placid, USA
The Winter Olympics was held in Square Valley, USA
02
01
2018
The Winter Olympics was held in PyeongChang, South Korea
In recent years, China has become one of the most competitive counties in the Winter Olympics, ranking among the top medium winning counties
Vision and preparation for China to host the Winter Olympics
China has expressed its willingness to host the Winter Olympics, and has been actively preparing for it
DELMIAIntroduction介绍PPT课件
.CATProduct
仿真中资源等零件所使 用的文件格式，例如机 器人，焊枪等，该格式 可以为仿真提供足够的 零件形状信息。
2020/7/17
14
DELMIA软件基本操作
该软件基于CATIA, 属于同一公司产品，通过DELMIA可直接打开CATIA对相关 型进行操作。一些基本操作，与CATIA的相关操作无异。
第4步
DPE、DPM
2020/7/17
13
文件格式
1
2
3
.CATProcess
工艺(process)文件常 用的保存格式，可以在
assembly process planner等模块中打开。
.cgr
CATIA几何模型的格式， 只保留了点线等信息， 去除掉其他的例如装配 信息等内容，能够大量 减少模拟时文件的大小， 减少计算机任务。
Part/Module Supplier Logistics
9
汽车企业客户介绍
FINAL ASSEMBLY
BIW
POWERTRAIN PART/MODULE SUPPLIER
AUTOMATION
STAMPING
CMC
LOGISTIC
10
DELMIA 带来的价值
集成的PPR模式，涵盖了围绕工艺过 程设计的方方面面的内容； 通过工艺仿真优化工艺设计质量； 减少工程更改的成本； 缩短产品投放市场的时间； 减少制造过程中的风险； 提高产品的质量； 提升制造商在市场中的竞争力水平；
6
DELMIA软件模块介绍
E5
V5
制造过程建模
全3D数字化仿真
装配（人机）过程仿真
DPM Assembly/Human
D5
SelfIntroduction(简洁实用的英语自我介绍)PPT课件
2. Your skills. I can… I’m able to … I have passed… I’m good at…
6
What does the interviewer want to know?
3. Your hobbies. I like doing… I usually do … … is my favorite.
1. My name is … 2. I am… 3. That means …in Chinese. 4. I am twenty (years old).
Sentences for reference
I’m from…, Jiangsu Province; I was born in ______, but I grow up in____; My hometown is…, a beautiful/famous
You Know, The More Powerful You Will Be
13
谢谢大家
荣幸这一路，与你同行
It'S An Honor To Walk With You All The Way
演讲人：XXXXXX
时 间：XX年XX月XX日
14
4
What should we say?
1. Your personal information; 1)What’s your name? 2)Where are you from? 3)Who are you? 4)How old are you? 5)What’s your major?
5
What does the interviewer want to know?
very quickly; I have no experience, but I know
6
What does the interviewer want to know?
3. Your hobbies. I like doing… I usually do … … is my favorite.
1. My name is … 2. I am… 3. That means …in Chinese. 4. I am twenty (years old).
Sentences for reference
I’m from…, Jiangsu Province; I was born in ______, but I grow up in____; My hometown is…, a beautiful/famous
You Know, The More Powerful You Will Be
13
谢谢大家
荣幸这一路，与你同行
It'S An Honor To Walk With You All The Way
演讲人：XXXXXX
时 间：XX年XX月XX日
14
4
What should we say?
1. Your personal information; 1)What’s your name? 2)Where are you from? 3)Who are you? 4)How old are you? 5)What’s your major?
5
What does the interviewer want to know?
very quickly; I have no experience, but I know
英语介绍几个国家标志性建筑PPT课件
Background
With the advancement of globalization, cross-cultural communication is becoming increasingly frequent. Understanding the iconic buildings of different countries is of great significance for improving students' international perspective and cultural literacy.
Content Overview
Topic
Introduce the iconic buildings of several countries, such as the UK, France, China,
and the United States.
Content
including the historical background, characteristics,
Introduction to world-renowned architecture
• America - Statue of Liberty • Summary: The Statue of Liberty is one of the iconic buildings in the
United States, representing the concepts of freedom and democracy. • Detailed description: The Statue of Liberty is a famous statue located
With the advancement of globalization, cross-cultural communication is becoming increasingly frequent. Understanding the iconic buildings of different countries is of great significance for improving students' international perspective and cultural literacy.
Content Overview
Topic
Introduce the iconic buildings of several countries, such as the UK, France, China,
and the United States.
Content
including the historical background, characteristics,
Introduction to world-renowned architecture
• America - Statue of Liberty • Summary: The Statue of Liberty is one of the iconic buildings in the
United States, representing the concepts of freedom and democracy. • Detailed description: The Statue of Liberty is a famous statue located
英文介绍ppt课件ppt课件
Pronunciation elements include sounds, introduction, stress, and rhythm These elements work together to create the unique sound of each language
Difficiencies in promotion training
Difficiencies may include mastering the correct promotion of individual sounds, distinguishing between similar sounds, and adapting promotion to different contexts and accounts
Understanding and adapting to different cultural communication norms when engaging in English conversations
The ability to effectively communicate and resolve issues in English, demonstrating practical language skills
Ways of vocabulary learning
In addition to rote memorization, learners can also learn vocabulary through context, settlements, and word formation
Differences in vocabulary learning
English Reading and Writing Skills
Difficiencies in promotion training
Difficiencies may include mastering the correct promotion of individual sounds, distinguishing between similar sounds, and adapting promotion to different contexts and accounts
Understanding and adapting to different cultural communication norms when engaging in English conversations
The ability to effectively communicate and resolve issues in English, demonstrating practical language skills
Ways of vocabulary learning
In addition to rote memorization, learners can also learn vocabulary through context, settlements, and word formation
Differences in vocabulary learning
English Reading and Writing Skills
概述Briefintroductionppt课件94页PPT
•
x＝0.06 mg
13.08.2021
7.2 沉淀溶解度及其影响因素
7.2.1 溶解度与溶度积
1.固有溶解度和溶解度(solubility)
MA（固）
MA（水）
M+ + A-
沉淀平衡 以分子形式溶解 进一步解离
❖ (1)固有溶解度S0：微溶化合物的分子溶解度称为～
平衡常数
S0
aMA （ aMA （
水） aMA （
固）
水
）
注： T一定a， M（ AH2O） 一定为常数 （106 ~109mo/lL，极小）
13.08.2021
溶解度S：
❖难 溶 化 合 物 在 水 溶 液 中 的 浓 度 ， 为 水 中 分子浓度和离子浓度之和
S S 0 [ M ] S 0 [ A ] [ M ] [ A ]
▪ K 2. 活a 度a M M 积 （ (aa cA t iA v ity水 a pM r S o d0 a u） A c t conK sa 0 tan tp —K KaS p)0 a M a A 活度 K a 0p a M 积 a A ( T 一K 定 a 0为 p ， 常数
K a 0 a p M a A [ ] M γ M [ ] A γ A
13.08.2021
沉淀形式与称量形式关系
• 沉淀形式与称量形式可以相同，也可 以不相同，例如测定C1-时，加入沉淀 剂 形式Ag和NO称3以量得形到式A相g同Cl。沉但淀测，定此M时g沉2+时淀， 沉 到 式与淀的称形称量式量形为形式M式不g为N同HM。4gP2OP24O，7，经则灼沉烧淀后形得
• BaSO4------BaSO4 • CaCO3-----CaO, CaC2O4-----CaO, • Al(OH)3-----Al2O3
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take off land
Try to describe the first time you travelled a long distance.
Tips: I first travelled a long distance by ___ when I was _____________. I went with _________ from _______ to _______.
Homework:
1:Workbook:p80
4. 5 2:收集一些你曾经去旅行的纪念品、 相片、地图等。
Read the passage again:
Answer the following Qs: 1.What are the main differences between a magnetically levitated train and an ordinary train? 2. What are the advantages of travelling on a Maglev train?
1.What do you think of the ticket inspector’s attitude?
2. What expressions could you use to change it ?Fra bibliotekair work:
Act the conversation with the following sentences :
transportation
tram
bicycle
train
plane
bus
air
road rail/trail water
Filling& Guessing
get on get off
get into get out of ride drive
Bus\train\tram\bike\motorbike Ferry\plane Taxi/helicopter Bike/motorbike Train/taxi/bus Plane/helicopter
Excuse me Could I
Would you mind
I’m very sorry but
The fact is that
Culture corner:
1. Read the following passage and find out the topic sentence of each part. New words: Complete: (vt)完成 Magnetically: (adv)有磁性地 Levitate: (v)使------飘荡 Levitation: (n)升空飘荡之力 Chancellor: (n)奥地利等国的总理，首相
1）He didn’t _______ the ceremony. attend 2) Do you know how many people _____the organization? joined 3) The teacher decided to ask all the student to __________ in the clean-work.
辨析：attend, join, take part in
1)attend : 指出席、参加某一活动，强调出席 者不起积极作用，主要指参加会议、上学、 参加典礼、听演讲等等。 2)join :指参加某一团体或组织，成为其中一 员，也指参加某项正在进行的活动。 3) take part in:指参加活动，并在其中起积极 作用。
Module 3
My First Ride on a Train
Q: I’m going to Dalian tomorrow. Could
you please give me some advice on how I
can get there?
helicopter
motorbike
taxi
ferry
1) It is faster, less noisy and uses less energy.
2) You travel very quickly and quietly. The train uses less energy.
On December 31, 2002:具体时间用on. Attend: 及物或不及物动词：出席，参加 如果你不能出席，请通知我们 please let me know if you are unable to attend.
Q：When talking about experience, what factors should you pay attention to?
Who , when, where, what, why& how
Being polite
Read the conversation :p24
Then discuss the following Qs:
take part in
reached a speed of 501 kms----
reach-----达到 reach up to -------高达 这座山海拔1000米。 The hill ______ a height of 1000m above the reaches sea level. 这座山海拔高达1000米。 The hill ___________a height of 1000m above the sea level. reaches up to