单词 | rib lever |
释义 | > as lemmasrib lever rib lever n. now rare a rib functioning as a lever in respiratory (or locomotory) movements. ΚΠ 1874 Liverpool & Manch. Med. & Surg. Rep. 2 63 The rib-levers are free to move at their anterior extremities. 1889 Murray's Mag. Feb. 235 By the movement of the rib-levers the body [of a serpent] is drawn forwards. 1920 A. Keith Engines Human Body xiii. 127 The whole of that part of a rib-lever which is situated in the back of the body forms a fulcrum or axis. 1978 R. Roaf in D. N. Ghista & R. Roaf Orthopaedic Mech. I. ii. 37 (caption) Diminished leverage of trunk muscles on convex side of curve due to the shortening of the effective rib lever. < as lemmas |
随便看 |
英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。