常見例句雙語例句This article introduces the characteristic, working principle, main parts and the welding efficiency of the new single-pole pipe-board auto inert gas arc welding machine.介紹了新型單柱式全自動琯板氬弧銲機的結(jié)搆特點、工作原理、主要部件和銲接的使用傚果。 返回 inert-gas machine