frictionizev.擦
frictionn.摩擦;摩擦力;分歧
frictional connection摩擦连接
frictional electricity摩擦电
friction in suspension悬挂摩擦
frictional heat energy摩擦热能
frictional metal chock摩擦式金属支架
friction ratchet wheel摩擦棘轮
friction contact model摩擦接触模型
friction yielding prop摩擦让压支柱
friction pressure drop摩擦压降
friction driven spools摩擦传动的筒子