valve position switch unit阀: established house or power g ...位: place; location开关装置: switching device; switching ...阀位开关: valve position switchq 开关装置: q switched unit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:阀位开关装置,即可在微信中查询翻译