单词 | sprag |
释义 | sprag[spræg]n. 制轮木【机】 插模钉 sprag sprag AHD: [spr²g] D.J. [spr#g]K.K. [spr#g]n.(名词)1. A piece of wood or metal wedged beneath a wheel or between spokes to keep a vehicle from rolling.制动木:安装于一轮下或辐条间用以阻止车辆滑动的一片木头或金属2. A pointed stake lowered at an angle into the ground from a vehicle to prevent movement.点闸:从车辆上放低一个角度嵌入地面以防止其运动的凸出的闸3. A prop to support a mine roof.支撑物:支撑矿顶的支柱语源:[Perhaps of Scandinavian origin] [可能起源于斯堪的那维亚] |
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