Each term of the Bernoulli equation has the dimension of force per unit area.
伯努利方程中的每一项的量纲都是单位面积上的力。
The pressure differential generates a lift force that supports the wafer below the head portion (54) of the wand in a substantially non-contacting manner, employing the Bernoulli principle.
该压力差生成以基本非接触的方式支撑该棒的 头部部分（54）下面的晶片的抬升力，其采用了伯努利定理。
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