bare wire短语¹⁴⁴⁹⁷²⁺² 基本例句 光焊丝,裸线,裸铜丝 The bare wire was protection by steam, so prevent copper bare/span> wire oxidation. 裸线由蒸汽保护，以阻止裸铜线被氧化。 tianhuaqbj.com This paper introduces the testing method of deposition efficiency of CO2 welding of bare wire. 介绍了实芯焊丝 CO2焊的熔敷效率测试方法； chemyq