英国的政坛人物十分依赖黑莓等移动科技，因此议会机关目前允许在下院主辩论厅使用手机，不过要调为静音。

Politicians here have come to rely on mobile technology such as BlackBerrys so much that parliamentary authorities now allow their use in the House of Commons main debating chamber, albeit silently.

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那么，静音无油空压机包含那些环保科技呢？

So, mute oil free compressor containing those environmental protection science and technology?

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