With the increase of altitude (above sea level), atmosphericpressure 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。
2
The deviation of sound above and below the atmosphericpressure levels is called Sound Pressure.
上述偏差的声音和大气压力下被称为声压水平。
3
That is different from the elevation above sea level atmosphericpressure and water temperature at 20 degrees centigrade higher than the saturation vapor pressure.