sediment flushing efficiency冲: powerful; with vim and vigou ...沙: sand效率: productiveness; efficiency; ...沉沙效率: traefficiency拦沙效率: trap efficiency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:冲沙效率，即可在微信中查询翻译
