sewer sluice valve污水管: cesspipe; drain; sewer pipe; ...冲洗: wash; rinse; rinsing; flush; ...阀: established house or power g ...冲洗阀: flush valve; flushing valve; flushometer反冲洗阀: backwash valve; reversing valve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:污水管冲洗阀，即可在微信中查询翻译
