Later, after he taught me the proper use of hammer and chisel, I began to hollow out the hull.

不一会儿，他就教我使用锤子和凿子，我又开始挖船体。

youdao

It describes the designing, logic circuit, working principle and adjustment of the pneumatic rubber plate logic control system attached to the horizontal multiple-hollow-chisel mortiser.

详细阐明卧式多头打眼机气动膜片逻辑控制系统的设计，逻辑线路，工作原理及其调试。

youdao

It describes the designing, logic circuit, working principle and adjustment of the pneumatic rubber plate logic control system attached to the horizontal multiple-hollow-chisel mortiser.

详细阐明卧式多头打眼机气动膜片逻辑控制系统的设计，逻辑线路，工作原理及其调试。

youdao