Pounds per square inch:
The pound per square inch or, more accurately, pound-force per square inch (abbreviations: psi, lbf/in2, lbf/in2, lbf/sq in, lbf/sq in) is a unit of pressure or of stress based on avoirdupois units.
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磅力每平方英寸:
PSI是英制压力单位 Pounds per square inch 的缩写，（較正確的缩写為 psi、lbf/in2、lbf/in2、lbf/sq in，或 lbf/sq in) 具体指的是「一平方英寸面积承受1磅重」(6 894.75729 帕斯卡)所造成的压力。
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Pounds per square inch磅力每平方英寸