Length of be confined to, manuscript abbreviates somewhat.

限于篇幅, 原稿略有刪節(jié).

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This not only abbreviates catalytic cracking equipment, but also enhances the economical effects of refineries plant.

這樣不僅緩和了催化裝置的操作, 而且可為煉油廠開發(fā)出新產(chǎn)品,創(chuàng)造經(jīng)濟效益.

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