| 1. | The commission, in addition, gained jurisdiction over express and sleeping car companies, switches and spurs, and pipe lines .
委员会另外还获得管理快车和卧车公司、铁路侧线和支线以及油管线的权限。 |
| 2. | Application and development of water supply and sewerage pipe line
美国塑料管道发展之道 |
| 3. | Test methods for vulcanizable rubber tank and pipe lining
硫化橡胶容器和管道内衬的试验方法 |
| 4. | General purpose screw threads for joints on pipe line - dimensions
管路旋入端用普通螺纹尺寸系列 |
| 5. | Design specification for process pipe line diagram in refining units
炼油装置工艺管道流程设计规范 |
| 6. | Steam trap flow direction in accordance with that of the pipe line
疏水阀的流向要与管路流向一致。 |
| 7. | Swing check valves prevent reversal of flow through pipe lines
旋启式止回阀可以防止管路中的流体倒流。 |
| 8. | Thermal activation analysis of dynamic fracture of pipe line steel x
70管线钢动态断裂的热激活实验与分析 |
| 9. | This may be due to inadequate initial flushing of the pipe lines
这可能是由于管道的初始冲洗不彻底引起。 |
| 10. | Fuel oil pipe line - solenoid valves
燃油管道.电磁阀 |
