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汉语拼音：dào liú

1.向上游流：河水不能～。

2.比喻向跟正常流动相反的方向流动：商品～。时光不会～。

• We cannot put back the clock.

  我们无法让时光倒流。

• The water backed onto the floor from the drain.

  水从排水管倒流到地板上.

• This prevents urine from running back under the cast.

  这可防止管型下的尿液倒流.

• Superman's gonna fIy around Earth and turn back time?

  超人绕着地球飞几圈让时光倒流?

• Never look back in the past since time can never be reversed.

  发生了的事,永远都已成定局;再怎样,时光也不会倒流.

• For life goes not backward nor tarries with yesterday.

  因为生命无法倒流,也不会滞留于昨日.

• Time never moves in reverse, so we can never relive the past.

  时光无法倒流, 我们都不可能回到昔时.

• The sea saw it, and fled: Jordan was driven back.

  3沧海看见就奔逃.约旦河也倒流.

• They prevent steam backflow from the header to the boiler.

  这种阀门能够防止蒸汽从集气箱倒流到锅炉里.

• The backflow preventer must be installed upstream of the regulator.

  防倒流装置必须安装在调节阀的上游位置.

• Used in boiler feed water and other pipe system.

  用于锅炉给水及其它管道系统,作阻止介质倒流用.

• Clogged pipes caused drain water to back up into the house.

  阻塞的水管使沟水倒流到屋里.

• During irrigation period , the backflow from the farmland pollutes the branch.

  每当农业灌溉之时, 支流都因倒流而严重污染.

• Swing Check valves prevent reversal of flow through pipe lines.

  旋启式止回阀可以防止管路中的流体倒流.

• Service in systems involving frequent flow reversals and pulsation should be avoided.

  应该避免应用在频繁出现流体倒流和间断的应用系统中.