Finish the pneumatic design of all the functions of hill-dropdrill, 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。
2
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。
3
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.