With very good air-tightness, can conduct reaction under negative pressure and easily assemble distillation, reflow device.

有很好的气密性可在负压下反应方便地组装成蒸馏回流装置。

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Under negative pressure, nickel sulfate can be recovered from the liquid waste of copper electrolysis through the boiler stream. The recovery rate of nickel sulfate comes up to 98 %.

在负压的条件下，利用锅炉蒸汽回收铜电解废液中的硫酸镍，其回收率达到98%以上。

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Methods Automatic biopsy device with negative pressure under the guidance of ultrasound through an oblique Angle were performed in 669 patients with nephropathy.

方法应用自动同步负压活检装置，在超声引导下斜角进针对669例肾脏疾病患者进行肾穿刺活检。

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It was a nasty looking place, but the building is under negative air pressure to prevent the stink from escaping.

FORBES: How To Burn Trash For Power

If there is to be political strife in Indonesia though, the market will be under pressure and the impact on Asia will be negative.

CNN: ASIANOW - Asiaweek