non-structural hydrodynamic trap非: mistake; wrong; errors构造: structure; construction; con ...水: water动力: motive power; power; dynamic圈: circle; ring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:非构造水动力圈闭，即可在微信中查询翻译
