Finish the pneumatic design of all the functions of hill-drop drill, and produce the pneumatic circuit drawings.
对气动部分的各种功能进行了设计，并绘制出气动回路图。
Rain down the grass stems roll down, a drop of drill into the earth, and a drop into the grass mouth, can not find.
雨珠顺着小草的茎滚下来，一滴钻到土里，又一滴钻到了小草的嘴里，找不到了。
Once you're on the ice, you drill your holes, line up the holes that are inside the Wilcraft, and press a couple switches to drop the hull onto the ice.
一旦你在冰面上，整齐的地钻一排冰洞都由Wilcraft内部完成，随后按一个双向开关把船体拖放到冰面上。
The laying position and well blowout pressure are analyzed and discussed briefly and the relationship curve of drill bit pressure drop vs flowrate and fluid density i.
对其安放位置及井喷压力进行了简要分析和探讨，建立了钻头压降与流量、流体密度的关系曲线。
The laying position and well blowout pressure are analyzed and discussed briefly and the relationship curve of drill bit pressure drop vs flowrate and fluid density i.
对其安放位置及井喷压力进行了简要分析和探讨，建立了钻头压降与流量、流体密度的关系曲线。
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