In the middle pressure chamber upside sets floating seal device, so vortex top and middle pressure by exhaust pressure role.

在中间压力腔上部设有浮动密封装置，因此涡旋顶部受排气压力与中间压力作用。

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Taking the leakage of middle pressure gas network for example, the development of emergency plan for sudden environmental pollution accident is discussed.

以中压燃气管网泄漏为例，论述了突发环境污染事故应急预案的制定。

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Pros and cons as well as the effect of upgrading inferior FCC gas oils by caustic treating, hydrotreating, middle pressure hydro-upgrading and solvent refining etc.

分析了采用碱精制、加氢精制、中压加氢改质和溶剂精制等技术对催化裂化劣质柴油改质的利弊及其效果。

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Middle-income whites have the best blood pressure.

VOA: standard.2010.04.08

The Pakistan openers walked to the middle under intense pressure and it proved too much for Farhat, who shouldered arms to an inswinging delivery from McGrath.

BBC: SPORT | Cricket | Other International | Aussies tighten grip on Pakistan

The pound had already been under pressure since the middle of last week when the Bank of England quarterly inflation report forecast higher inflation and weak growth.

BBC: Pound continues to weaken against dollar and euro

Northern states including Minnesota, Wisconsin and North Dakota are closer to normal rainfall levels as a high pressure system over the middle of the country pushed wet weather northward during the last month.

WSJ: Midwest's Dry Spell Threatens to Intensify