机械英语术语1. “Gears”（齿轮）- You know, gears are like the cogs in a big, complex machine of life. They mesh together and make things work smoothly. For example, in a bicycle, the gears help you pedal with ease up a hill or speed along on a flat road. Without gears, it'd be like trying to run a race with your shoes tied together. It just wouldn't work right.2. “Shaft”（轴）- A shaft is the backbone of a mechanical system. It's like the spine of a mechanical animal. Take a car's drive shaft, for instance. It transfers power from the engine to the wheels. If the shaft breaks, it's a disaster. It's like the heart of the system stops pumping blood.3. “Lever”（杠杆）- Oh, the lever! It's a simple yet amazing thing. It's like a magic wand in the mechanical world. Remember the seesaw in the park? That's a lever. You can use a lever to move heavy objects with little effort. It's like having a superpower. If you don't believe me, try lifting a big rock without a lever and then with one. You'llbe amazed.4. “Pulley”（滑轮）- Pulley is a real cool thing in mechanics. It's like a helpful little friend that makes work easier. Think of a flagpole. The pulley on the flagpole helps the flag go up and down smoothly. Without it, raising the flag would be a real pain in the neck. It's like trying to climb up the pole to put the flag up every time.5. “Bearing”（轴承）- Bearings are the unsung heroes in machinery. They're like the smooth - talking diplomats in a world of rough - and - tumble mechanical parts. In a skateboard, the bearings in the wheels allow you to glide effortlessly. If the bearings go bad, it's like trying to skate on sandpaper. Horrible!6. “Cam”（凸轮）- The cam is a funky little part. It's like the conductor of an orchestra in a mechanical device. In an old - fashioned sewing machine, the cam controls the up - and - down motion of the needle. It's so important. If there was no cam, it'd be like the sewing machine lost its rhythm and just went haywire.7. “Piston”（活塞）- A piston is a hard - working guy in the mechanical family. It's like a boxer, constantly punching in and out. In an engine, the piston moves up and down, creating the power that makes the car go. If the piston gets stuck, it's like a boxer who can't throw a punch anymore. The whole engine is in trouble.8. “Crankshaft”（曲轴）- The crankshaft is a bit of a twisted character, but in a good way. It's like the snake in the grass of the engine, wriggling around and making things happen. In a motorcycle engine, the crankshaft turns the up - and - down motion of the pistons into rotational motion. Without it, the motorcycle would be as useless as a bike without pedals.9. “Valve”（阀门）- Valves are the gatekeepers in mechanical systems. They're like the bouncers at a nightclub. In a plumbing system, the valves control the flow of water. If a valve gets stuck open or closed, it's like the bouncer let in all the wrong people or didn't let in the right ones. Chaos ensues.10. “Flywheel”（飞轮）- The flywheel is like a battery for energy storage in amechanical device. It's like a little energy piggy bank. In a steam engine, the flywheel stores energy during the power stroke and releases it during the other strokes. If there was no flywheel, it'd be like trying to run a marathon without any energy gels. You'd run out of steam real fast.11. “Sprocket”（链轮）- Sprockets are like the gears with a spiky personality. They're crucial in things like bicycles with chains. If you look at a bike chain system, the sprockets help transfer power from the pedals to the wheels. Without sprockets, it'd be like trying to send a message without a messenger. The power just wouldn't get where it needs to go.12. “Torque”（扭矩）- Torque is that mysterious force that makes things turn. It's like the hidden strength in your muscles when you're trying to open a really tight jar. In a power drill, torque is what makes the drill bit spin and bore into wood or metal. If there was no torque, it'd be like trying to stir thick soup with a toothpick. Impossible!13. “RPM” (Revolutions Per Minute)- RPM is like the heartbeat rate of a machine. It tells youhow fast the parts are spinning. Think of a blender. When you turn it on high, the blades are spinning at a high RPM. If the RPM is too low, it's like a slow - dancing couple when you expected a wild tango. It just won't blend things well.14. “Tolerance”（公差）- Tolerance in mechanical terms is like how much wiggle room you give your friends. In manufacturing, the tolerance for a part's size is very important. For example, in building a watch, the parts have to be made with very tight tolerances. If the tolerance is too big, it's like inviting too many unruly guests to a small party. Things will get messy.15. “Fixture”（夹具）- A fixture is like a mechanical babysitter. It holds things in place so other operations can happen. In a machining workshop, a fixture holds a piece of metal while it's being drilled or cut. If there was no fixture, it'd be like trying to cut your hair while running around. You just can't get a good result.16. “Jig”（治具）- Jigs are like the helpful assistants that make sure everything is in the right place. In woodworking, a jig can be usedto make sure you cut the wood at the exact angle every time. If you don't use a jig, it's like trying to draw a straight line without a ruler. It's a mess.17. “Thread”（螺纹）- Threads are like the little grooves that hold things together, literally. In a bolt and nut, the threads on the bolt match with the threads on the nut to keep things tight. If the threads are damaged, it's like trying to zip up a broken zipper. It just won't hold.18. “Weld”（焊接）- Welding is like the super glue of the metal world. It fuses two pieces of metal together as if they were one. In building a metal sculpture, welding is used to attach different parts. If the weld is bad, it's like a broken friendship. The parts will split apart easily.19. “Lathe”（车床）- The lathe is like a magical spinning wizard in the machining world. It can shape a piece of metal into all kinds of cool shapes. For example, if you want to make a cylindrical part, the lathe can do it. If you don't know how to use a lathe, it's likehaving a magic wand but not knowing the spell.20. “Milling Machine”（铣床）- A milling machine is like a precision artist. It carves and shapes metal with great accuracy. In making a complex metal part for a machine, the milling machine can create all the grooves and curves. If the milling machine is not set up right, it's like an artist with a shaky hand. The final product won't be as good as it should be.My conclusion is that mechanical English terms are not just cold, technical words. They are the keys to understanding how the mechanical world around us works. Each term has its own unique role, like characters in a big, mechanical story. And understanding these terms can make us appreciate the amazing machinery that makes our modern life possible.。
