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Be sure that you do not remove metal when cleaning ring grooves or oil slots.
清洁活塞环槽或油环开缝,绝对不能损伤金属部分。
youdao
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When cleaning up the drawer, I found some old photos.
在整理抽屉时,我发现了一些老照片。
youdao
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When cleaning up the drawer, I found some old photos.
在整理抽屉时,我发现了一些老照片。
youdao