医学翻译英语 ... hook plate 钩板 hook retractor 牵开钩 hook-shaped spinal marrow elevator 钩形脊髓分离器 ...
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retractor hook 牵开钩 ; 形牵开器
vein hook retractor 静脉钩牵开器
retractor r hook 牵开钩
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The hook was clamped by two screw nuts on the screw, and these makes up of the retractor finally.
不锈钢丝拉钩经两个螺母夹持固定在磁力底座的螺栓上，组成简易的磁力底座拉钩；
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