150lb对应的是2.0MPa的意思,因为LB是压力单位,换算公式如下1Mpa=145LB (磅/吋的平方)。压力单位与物体重和受力面积有关,方向垂直于接触面,在受力物体是水平面的情况下,压力(F)=重量。
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