The workshop cause quite a lot of parings and sawdust should be protected with dustproof cover.
刨花、锯末较多的车间的电效果，应加防尘罩。
Put dustproof cover on the machine and keep it in a dry and ventilated place when it is not used.
若仪器放置不用时，请用防尘罩盖好，置于干燥、通风的安全之处。
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。
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