柯林斯英汉双解大词典
sprag /spræɡ/
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1.
N a chock or steel bar used to prevent a vehicle from running backwards on an incline (防止车在斜坡上向后滑动的)制轮木
双语例句
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This paper also introduces sprag overrunning clutch to be applied in transmission system of rotor aero-craft.
还对斜撑超越离合器在直升机传动系统上的应用作了介绍。
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Under unfavourable work conditions a dangerous section forms on the inner wing of the joint between sprag and grip, where the stresses are concentrated.
木材抓具的抓爪，在不利工况下的危险截面是位于撑杆与抓爪联结爪耳处的内缘，该处所受应力最大。
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