The safety tube can ensure air bubbles not to enter human body regardless of how the safety tube is placed.

该安全管无论何样放置都能保证气泡不进入人体。

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Objective To evaluate the curative effect and safety of modified thoracic trocar and drainage tube which can be lavaged for empyema treatment.

目的观察应用改良胸腔套管针及可冲洗胸腔引流管治疗脓胸的疗效和安全性。

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The article introduced the construct characteristics and safety operation technology of hydrogen tube trailer.

介绍了氢气长管拖车的结构特点及其安全技术。

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Yet unlike other professions responsible for public safety, such as airline pilots and tube drivers, the NHS does not have strict rules on drinking before duty.

BBC: Dr Thomas Kenny is a recovering alcoholic