One of his tasks is to use a computer-controlled machine tool to burn tiny cooling holes electrically in 3-inch-long turbine blades for aircraft jet engines.
他的工作职责之一就是用机控机床为喷气式飞机引擎的3英尺长的涡轮机叶凿出小孔。
2
Dry plasma cutting: also called the air-filled type cutting, the air compressor to plank cut in order to achieve the effect of cooling seam jet, such cutting costs low, but pollution is very large.