lower valve body下: below; down; under; undernea ...阀体: valve body下阀: lower valve阀体: valve body◇阀体连接头 valve body attachment下阀盖: bottom flange; bottom-loading thermobalance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:下阀体，即可在微信中查询翻译
