standard specification for molybdenum flattened wire for electron tubes电子管: electron tube duct; canal; v ...用: 40分钟跑完全程 run the course in 4 ...扁平: flat钼: molybdenum丝: silk下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:电子管用扁平钼丝,即可在微信中查询翻译