Boiler control system is composed of drum water level control system, stem pressure control system, hearth negative pressure control system and combustion economical control system.

锅炉控制系统可以分为汽包水位控制系统、蒸汽压力控制系统、炉膛负压控制系统和燃烧经济控制系统。

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Others have less rigid currencies but still intervene to stem what they regard as excessive upward pressure.

其它国家汇率没这么僵硬，但仍进行干预以抑制他们认为过度的升值压力。

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Federal funding of stem-cell research has been withdrawn as a result of pressure by people-a minority among taxpayers-who take a moral stand against it.

因为受到了一些从道德立场上反对干细胞研究的人(纳税人中的少数)的压力，对干细胞研究的联邦资助被撤回。

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"We found that the babies who died of SIDS had abnormalities in serotonin in regions of the brain stem that control breathing and heart rate and blood pressure during sleep."

VOA: standard.2010.02.08

There is strong legislation and political pressure to stem the exodus of U.S. companies through inversions or reincorporations into low-tax countries where companies have no operations.

FORBES: A Cross Country Comparison Of Corporate Income Taxes

After examining Scotty and confirming that the bullet hadn't entered his skull, and with the help of producer Shirley Hung, I applied a pressure bandage to stem the bleeding as we raced to a U.S. military base for more treatment.

CNN: Behind the Scenes: Shootings are painful reminder

Providing modern contraception also has the potential to stem population growth and relieve human pressure on the environment and natural resources.

CNN: The elephant in the room at Rio summit