| 1. | The two cogwheels are engaged .
这两个齿轮啮合在一起。 |
| 2. | The two cogwheels engaged and the machine started .
那两个齿轮一啮合，机器就启动了。 |
| 3. | He had attached a wheel with notched rim to the clock .
他把一个带有切口的齿轮安在钟上。 |
| 4. | They do not go ahead when the differential is smashed .
差速齿轮撞坏了，他们没法往前开。 |
| 5. | This large gear turns the small one to rotate the cylinder .
这个大齿轮带动小齿轮使滚筒旋转。 |
| 6. | The gears are locked .
齿轮卡住了。 |
| 7. | When the gears are engaged, the crankshaft keeps the car moving .
而曲轴，在齿轮箱挂挡时，又使汽车持续运动。 |
| 8. | This has been implications for the specification of case depth for gears .
这一情况已影响到齿轮硬层深度技术条件的确定。 |
| 9. | The impellers are kept in their proper relationship to each other by spur gear .
液轮之间借助于正齿轮保持彼此正常的关系。 |
| 10. | Oil may be forced out through the timing cover and rear-main bearing oil seals .
机油会从正时齿轮盖和后主轴承油封处压出。 |
