The effects of different jet mode and air amount on propeller's hydrodynamics and radial noise are also studied by model tests.

并以模型试验的方法研究了不同充气方式和充气量对螺旋桨水动力和辐射噪声的影响。

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With the increase of altitude (above sea level), atmospheric pressure decreases, which leads to a reduction of the air amount inhaled into the cylinder of diesel engines.

随着海拔的增加(高于海平面)，大气压力减小，导致吸入柴油机气缸内的空气量减少。

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The method can properly reduce the air amount at the tapping holes when normal iron discharge is carried out, and can reduce the energy consumption of the fans and save the energy.

本发明可实现对正常出铁时铁口的风量适当减少，减少风机能耗，节约能源。

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It measures the amount of air Arick is able to push out of his lungs.

VOA: special.2009.07.28

At about nineteen-thousand meters, the air is so thin and the amount of oxygen so small that a person needs a lot of special equipment to survive.

VOA: special.2011.04.06

Humidity is the amount of water in the air.

VOA: special.2010.07.27

The network dedicated an unprecedented amount of air time to the sport on Saturday and Sunday.

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They eliminate the need for window shades and reduce the amount of air conditioning equipment needed.

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But in the vacuum of space the tiny amount of air trapped between them would inflate to create a semi-rigid structure.

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