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。

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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。

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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。

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