valve operator adapter阀: established house or power g ...操纵: operate; control; roll; stee ...转接: change-over; throw-over; swi ...器: implement; utensil; ware操纵转盘: maneuvering dial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:阀操纵转接器，即可在微信中查询翻译
