线荷载
knife edge loading
刀形开关 knife switch
锤石 knobbing
可拆卸的房屋构件 knocked down building components
可拆卸的门框 knocked down frame
结 knot
牛皮纸 kraft
刀形开关 knife switch
锤石 knobbing
可拆卸的房屋构件 knocked down building components
可拆卸的门框 knocked down frame
结 knot
牛皮纸 kraft