| 1. | Several different types of valves are in use. some are back pressure valves .
有几种不同的阀在使用中，有些是反向压力阀。 |
| 2. | Are there any of those old machines still in use
那些旧机器中有一些仍在使用中吗？ |
| 3. | That is why the machine parts wear away during use
那就是机器零件在使用中磨损的原因。 |
| 4. | That is why the machine parts wearing away during use
那就是机器零件在使用中磨损的原因。 |
| 5. | Change in its shape allow modification in its use
其性状的改变应允许在使用中对它进行修正。 |
| 6. | Languages develop continually through usage
语言在使用中不断发展。 |
| 7. | Languages develop continually through usage
语言在使用中不断发展 |
| 8. | We strongly believe in service comes before business
我们强烈相信在使用中来首先在事务之前。 |
| 9. | The problem of using alpha coefficient
系数在使用中存在的问题 |
| 10. | Allows the socket to be bound to an address that is already in use
允许将套接字绑定到已在使用中的地址。 |
