column
... column bar test 竖条测试 column 镜筒 column 立柱,圆柱;蒸馏塔,交换塔;纵列,栏 ...
Body tube
... 镜座(base)和镜臂(arm) 镜筒(body tube) 转换器(nosepiece) ...
Lens-barrel
... Lens paper 擦镜纸 Lens-barrel 镜筒 Lens-mount 透镜框架的 ...
drawtube
... drawstring 拉带 drawtube 镜筒 dray 运货马车 ...