freeing portoutlet sluicewaste gate放水: turn on the water放水闸门: escape gate; relief gate; water release gate开水闸放水: sluice自动放水闸: automatic dam可调放水闸门: adjustable wicket gate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:放水闸,即可在微信中查询翻译