rearward-suction force  向后吸力

suction force of the soil  土壤吸取力

suction force pump  压力抽气泵

combined suction and force pump  联合真空压力泵

suction chamber of double suction pump  双吸泵吸水室

action force and reaction force  作用力与反作用力

applied electromotive force {= applied EMF}; impressed electromotive force  外施电动势

Attractive Force and Spring Force Characteristics  吸反力特性

Centripetal force and tangential force  向心力和切向力

equation of capillary force and buoyant force  毛－浮方程

force of-whist force stability  静力稳定临界力

force-drive (or force-closed) cam mechanism  力封闭型凸轮机构

Input-force-output-force  输入力－输出力

linkage force binding force  结合力

mighty force and civilized force  文明之师; 威武之师

SHEAR FORCE; SHEARING FORCE  剪力

the earth electric force and magnetic force  地球电磁力

thermal force and hydrodynamic force calculation  热力及水动力计算

unit conversion brake shoe(or brake pad)force(the ratio of conversion brake shoe force to mass)  比换算闸瓦力(换算闸瓦力与质量之比)