枪械原理

巴雷特与半自动

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猎枪

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栓式步枪

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气枪

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加林特

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发动机

转子发动机

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四冲程发动机

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斯特林发动机

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V式内燃机

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直列式内燃机

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水平对置式

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潜艇用斯特林

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内燃机

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奎西发动机

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喷气式发动机

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双函道涡轮发动机

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模具

压铸模具

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吹瓶模具

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　　注塑模具

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其他

振荡器

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蒸汽机车

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席克门蒸汽机

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椭圆规

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滚动轴承

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直线轴承

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鱼雷

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圆锥破碎机

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太阳能加热

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梯形转向结构

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凸轮连杆机构

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凸轮升降机构

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真空泵

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曲柄连杆发动机

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手动变速箱

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擒纵机构

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联轴器

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泥浆泵

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连杆

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间歇步进

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飞机螺旋桨与机枪

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滑块联轴器

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奥托循环

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缠绕机构

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齿轮变速箱

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机车

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