设计制作了一种可单人移动的防尘罩，拨闸时可起到明显的防烟尘作用。
The work designed and manufactured a removable dustproof cover for the iron branch channel that can prevent dust diffusing.
设计制作了一种可单人移动的防尘罩，拨闸时可起到明显的防烟尘作用。
The work designed and manufactured a removable dustproof cover for the iron branch channel that can prevent dust diffusing.
应用推荐