... drainage channel 排水沟，下水道 drainage rate 滤水速度，排水速度；排水比率 drainage tube 引流管；排水管 ...
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gas drainage rate 瓦斯抽放率
Drainage rate of 排水率
drainage rate sensor 滤过速率浓度传感器
raise gas drainage rate 提高瓦斯抽放率
rate of drainage 排水速率
These conclusions aid to measure drainage rate of gas and fixing on maintenance period of coal laneway.
这些结论对于检测煤层瓦斯抽放率以及合理确定煤巷的维护周期具有重要的参考价值。
In controlling factors of high permeability, the deformation of coal, coal fracture direction, ground stress and drainage rate were discussed.
在渗透率控制因素方面，从煤体变形、煤层裂隙方向、地应力和排采方面对其进行探讨。
While, birch has much faster drainage rate and highest solids content of the wet web, though its low retention properties need to be further improved.
相比之下，桦木浆具有较快的滤水速率和较高的湿部固含量，但其留着性能还有待改进。
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