| 1. | The passage is narrow .
这孔道很狭小。 |
| 2. | Repeat with a four channel tape and the number of patterns goes up to sixteen .
若用四条孔道带，孔型数就会增加到16种。 |
| 3. | There is a hole in the shaft through which the air from the upper chamber enters the lower one .
腔筒中心有一孔道，压缩空气就是由此从上气室进入下气室的。 |
| 4. | The superfluid is capable of flowing through narrow capillaries and channels that are impervious to most gases and certainly to all liquids .
超流体能够流过大多数气体以及所有液体都透不过的狭窄的毛细管和孔道。 |
| 5. | Optimal design of networks in hydraulic manifold blocks
液压集成块孔道网络优化设计 |
| 6. | Test method for pore diameter of porous ceramic
多孔陶瓷孔道直径试验方法 |
| 7. | Formation mechanism of secondary channel in water injection oilfield
注水开发油田二次孔道的形成机理 |
| 8. | Thermodynamic study on the velocity of gasflow through the vent of gas tank
气罐出口孔道气流速度的热力学研究 |
| 9. | Noise reduction friction course
减音多孔道路面层 |
| 10. | Noise reduction friction co
减音多孔道路面层 |
