它增加了每一单位面积上厕所间的使用率。
换句话说，无论人离声源多远，在每一单位面积内都有一定数量的能量传到人耳。
In other words, the amount of energy per unit of area contacts a person's ear regardless of how far she or he is away from the source.
缩写p【物理学】压力；压强：统一作用于物体表面的力量，用每一单位面积上的压力计量。
Abbr. PPhysics force applied uniformly over a surface, measured as force per unit of area.
一个平面物体的密度是每单位面积元的质量。
The density for a flat object would be the mass per unit area.
强度是每单位面积的度量，即使一个仅能产生几毫瓦能量的激光器也能产生一个直径只有一毫米的高强度光束。
Intensity is a measure of power per unit area, and even a laser that emits only a few milli-watts can produce a lot of intensity in a beam that's only a millimeter in diameter.
强度是每单位面积的度量，即使一个仅能产生几毫瓦能量的激光器也能产生一个直径只有一毫米的高强度光束。
Intensity is a measure of power per unit area, and even a laser that emits only a few milli-watts can produce a lot of intensity in a beam that's only a millimeter in diameter.
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