摩擦阻力。frictional: n. 摩擦的,由摩擦而生的。 adv. -ly resistance: n. 1.抵抗,反抗,抗拒,抵御;敌对,抵抗力,反抗力, ...coefficient of frictional resistance: 摩阻系数depth of frictional resistance: 摩擦阻力深度ecific frictional resistance: 比摩阻下载手机词典可随时随地查词查翻译