Specific Weight
若g 系物体的比重量 (specific weight),即每单位体积之重量,则dW =gdV,故
weight/power ratio
... 比功率 power/weight ratio 比重量 weight/power ratio 单位体积功率 specific volume power ...
power plant specific weight
物 weight ratio ; strength-to-weight ratio
thrust-to-weight ratio ; Thrust-weight ratio