井内的的英文

downhole

• 井:    well
• 内:    inner; inside; wit ...
• 的:    4次方是 The fourth po ...

例句与用法

1. An increase in connection gas due to the above condition and also to swabbing effects
   由于以上情况和抽吸作用的影响，接单根时侵入井内的气体量增加。
2. Since stations and tunnels of subway connect with each other and form a network rediating to all directions , the air flow is very complex
   要想在事故区间形成有效通风，单靠设在车站或风井内的大型隧道风机往往达不到通风效果。
3. Exhaust gas passage with variable pressure : it is adopted to prevent foul air from toilet and kitchen ; check valve is added at the joint
   变压式排风：为防止卫生间、厨房排风井内的污风反窜到室内，排风道采用了变压式排气道，并在封到接口处增设了止回阀。
4. The decrease velocity is relative low when the distance between the fracture and the axis of the borehole is small , and the successive reflected wave back in the borehole becomes strong
   裂缝距离井轴越远，降低速率越小，并且进入到井内的后续反射波较强。