the safety valve test安全阀: safety valve试验: experiment; test; trial机带安全阀试验: engine-drive safety valve test控制空气瓶安全阀试验: the safety valve test of control air bottle应急空压机安全阀试验: the safety valve test of emergency air compressor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:安全阀试验,即可在微信中查询翻译