plastic sleeve

基本解釋

By modifying the unqualified PP, a kind of plastic sleeve for washer which quality is close to the foreign product is obtained.
本文還對大慶產(chǎn)聚丙烯不合格料進行了改性，并獲得了質(zhì)量接近于國外產(chǎn)品的瓶套。
NOTE: The valve is shipped in the closed position. The indicator on the plastic sleeve is aligned with the vertical scribed line on the stem.
注意：閥門裝運時是處于關(guān)閉位置。塑料套筒上的指示器與閥桿上的垂直刻線對齊。
A distance sleeve in the main drive gear of LZ110 minicar has been improved by using a plastic sleeve instead of a rigid one, and it has been supported by test and calculation.
LZ110型汽車主傳動器主動齒輪軸隔套改進設(shè)計時，采用了塑性套，并做了一些試驗和計算。

"I have a plastic sleeve that holds 10 business cards, " she says, and she cuts oversize cards to make them fit.
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