A.205.7~493.2mL B.295.7~473.2mL C.395.7~573.2mL D.495.7~673.2mL
A.500kPa B.450kPa C.550kPa D.480kPa
A.(7±1)英寸汞柱 B.(8±1)英寸汞柱 C.(9±1)英寸汞柱 D.(10±1)英寸汞柱