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。
The end cover is impacted on the bicycle frame five-way pipe through the shaft bowl, and the end cover and the strain body form a dustproof air gap.
端盖由轴碗压紧于车架五通管上并与应变体形成防尘气隙；
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