专业英语课件

（5）It must be admitted that… 必须承认，……
（6）It appears (seems) that… 看来……，似乎…… （7）It is stated (said, reported, estimated, calculated, suggested, guessed, supposed) that…据说（报道，统 计，推算，建议，猜测，推测）……，一般认
steady-state error final value theorem distinguish type number integer integrator ramp n. n. n. v. 稳态误差 终值定理 区分，辨别 型数 整数 积分环节，积分器 斜坡
acceleration
n.
加速度
扰动误差
disturbance error
superposition
identical
n.
a.
叠加
相同的，一样的
eliminate
ahead of
v.
消除
在前面
entry
accompany
n.
v.
入口
伴随
难句解释：
[1] The designer should be fully aware, however, of the
的稳态误差可写作下式：
esቤተ መጻሕፍቲ ባይዱ lime(t ) limsEr (s)
t s0
(2-2B-1)
对开环传递函数G(s)，设有如下的通用式子： K a k s k a1 s 1 G( s) n (2-2B-4) s bl s l b1 s 1 在这个式子中： 1) K 已知，使分子分母多项式的常数项单位化，即传递函 数G的增益。它和下一节介绍的根轨迹增益不同，后者的最高 次幂项的系数是单位值1。 2) G的型数是整数n。分母中s因子代表着积分，型数就是G 中积分环节的数目n。 3) 增益，根据n的不同取值，通常的惯例，把下列名字和 注解与K相联系。 n = 0: Kp = position error constant 位置误差常数 n = 1: Kv = velocity error constant 速度误差常数 n = 2: Ka = acceleration error constant 加速度误差常数

他的价值观念似乎陈旧了。 • immense [i mens] adj.极大的，巨大的
例句：They made an immense improvement in English.
在E英nd语方面他们取得了巨大的进步To。pic Above Next
centrifugal [sen‘trifjugəl] adj.离心的
mass-produced大(批)量生产的
Section II Text
Processes of mechanization have been developing and becoming more complex ev er since the beginning of the Industrial Revo lution at the end of the 18th century.（自从 18世纪末工业革命开始，工业机械化进 程一直在不断地发展，并且变得越来越 复杂。） The current developments of auto matic processes are, however, different from the old ones.（但目前的工业自动化过程 较以前的工业自动化过程有很大的不同）
）
Now people often talk about “feedback” as b
eing an essential factor of the new industrial t
echniques, upon which is based an automatic
self-regulating system and by virtue of which
And in many, though not all, instances th e element of control is so great that me chanization displaces muscle, “automat ion” displaces brain as well.（尽管不 是所有的情况，但在大多数情况下， 控制元件依然发挥着强大的力量， 机械化已经代替了手工劳动，而自 动化代替了脑力劳动。

近年来，这些生产过程更依赖于先进的技 术，其与世界经济的贡献也与日俱增，远 远大于初期阶段的作用。
acetic 【 ə‘sitɪk 】酸的，醋酸的
acetic acid 乙酸
butanol 【 ‘bjutə,nol 】丁醇
acetone【 ‘æsə,ton 】丙酮 contaminate【 kən‘tæmə,net 】污染、毒害
我们无法确定这些微生物生产过程的出现是源于 偶然还是主观实验，但其进一步不断发展的早期 实例证明了人类能够利用微生物的生命活动来满 足自己的需要。
reliant 【 rɪ‘laɪənt 】依赖、依靠 proportion 【 prə‘porʃən 】比例、比率
humble 【‘hʌmb! 】低下的、卑微的 origin【‘ɔrədʒɪn】起源
其他的微生物过程，如奶酪和酸奶等发酵 乳制品的生产，以及酱油和豆豉等各种东 方食品的生产，都同样有悠久的历史。
Of more rencent introduction is mushroom cultivation which probably dates back many hundreds of years for Japanese shii-ta-ke cultivation and about 300 years for the Agaricus mushroom now widely cultivated throughout the temperate world.
formulate 【‘fɔ:mjuleit 】确切地阐述，
用公式表示
Anton van Leeuwenhoek安东尼·列文虎
克，荷兰博物学家，显微镜创造者
The recognition that these processes were being affected by living organisms, yeasts, was not formulated until the 17th century, by Anton van Leeuwenhoek.

A financial statement that shows the inflow and outflow of cash and cash equivalents over a period of time
The process of calculating and interpreting financial ratios to assess a company's performance, financial position, and liquidity
Understand and apply international accounting standards: Learners should gain a through understanding of international accounting standards and be able to apply them in practice
Enhance critical thinking and problem solving skills: Through the study of accounting professional English, learners should develop critical thinking and problem solving skills that are essential for success in the accounting field
The Learning Objectives of Accounting
Professional English
01
02
03
Develop language skills for effective communication: Learners should be able to communicate confidently and effectively in English, both orally and in writing, in accounting related contexts