fh-fyt防火: fire prevention; fire safety ...防烟防火调节阀: sfvd点火调节: adjustment of ignition; ignition governing点火调节杆: ignition adjusting lever; ignition control lever点火调节器: ignition governor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:防火调节阀,即可在微信中查询翻译