A teenager braves the flies and stench of a leaking outdoor toilet to draw water from a standpipe.
一位少年不顾横飞的苍蝇和户外厕所发出的臭气在供水站取水。
Welding-seam on the standpipe.
外套管表面有焊接缝。
A standpipe was crucial for smooth circulation.
一根立管对实现顺利循环至关重要。
The negative pressure gradient and slip velocity in standpipe increase with the increase of circulating rate.
随着循环量的增大，立管内的负压差梯度及气固相对速度也随之增大；
The utility model discloses a three-jaw quick joint automatic opening and closing ball valve used for connecting a sprinkling standpipe and a sprinkler.
本实用新型是用于连接喷灌立管和喷头的一个三爪快速接头的自动开关球阀。
Due to the complication and variety in the hole especially the time that is needed to transmit pressure it is very inconvenient to use choke valve to control standpipe pressure.
但井下情况复杂多变，尤其是压力传递需要时间，给调节节流阀控制立压带来不便。
Based on the experimental results and analysis, the idea and principle about design of standpipe shape and dense-phase transportation of catalyst in the standpipe were presented.
根据实验结果及分析，对垂直立管的管形设计和催化剂在垂直立管中的密相输送提出了分析与建议。
The influence of the arrangements of pipes on gas solid flow characteristics in the dense section of standpipe in the circulating fluidized bed is studied on a cold state experiment platform.
在冷态试验台上研究了循环流化床料腿密相段中不同管束布置方式对气固流动特性的影响。
The influence of the arrangements of pipes on gas solid flow characteristics in the dense section of standpipe in the circulating fluidized bed is studied on a cold state experiment platform.
在冷态试验台上研究了循环流化床料腿密相段中不同管束布置方式对气固流动特性的影响。
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