The unique relief valve construction incorporates two channels: one for air, one for water. When the relief valve opens, as in the accompanying air-in/water-out diagram, the right-hand channel admits air to the top of the reduced pressure zone, relieving the zone vacuum. The channel on the left then drains the zone to atmosphere. Therefore, if both check valves foul, and simultaneous negative supply and positive backpressure develops, the relief valve uses the air-in/water-out principle to stop potential backflow.
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Her astrological sign is the one for earth. Mine is the one for water. Together we made mud.
她是土向星座的，我是水向星座的，在一起就和泥了。
They have come up with two sorts, one for heavily polluted water and one for water that is only lightly polluted.
他们已经发现了两种光活性催化剂，一种用于净化严重污染的水，一种用于净化轻度污染的水。
Beside your napkin you will find a small bread roll and three glasses - one for white wine, one for red wine, and one for water.
在餐巾旁你会发现一个小面包圈和三个玻璃杯——一个是白酒杯，一个是红酒杯，一个是净水杯。
New irrigation methods are expected to double wheat production while using one-third of the water required for full irrigation.
VOA: special.2010.02.08
The United States Agency for International Development provided one million dollars for the Water and Livelihoods Initiative.
VOA: special.2010.02.08
One was to get me to bring water for them.
VOA: special.2010.08.01
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