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单词 rib lever
释义

> as lemmas

rib 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.
extracted from ribn.1
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as lemmas
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