single-slope drainage

WAB single riser drainage system is a special kind of single stand pipe drainage system which has been widely used in engineering practice in our country.

WAB型单立管排水系统属于管件特殊类单立管排水系统，在国内已广泛地应用于工程实际。

Based on the calculating data of the case history of well point drainage. this paper analyzes the condition of influence of the coefficient of permeability to the interference yield of a single well and the number of wells.

本文根据井点排水的实例计算数据来分析渗透系数对单井干扰出水量、井数的影响情况。

Conclusion Single-bore or double-bore drainage is effective in treating chronic subdural hematoma.

结论单孔或双孔钻颅血肿引流是治疗慢性硬膜下血肿的有效方法.

Observation of Effect of Single-bottle and Double-bottle Vacuum Aspiration for Thoracic Close Drainage

单瓶与双瓶负压吸引胸腔闭式引流效果观察

Single drainage pumps have the potential intrusion should set up a non-return valve.

单台水泵排水有可能发生倒灌时,应设止回阀.