Test and analysis are carried out on the vibration trouble of flue gas fan units. The conclusion is obtained and the repair suggestion is put forward.

对烟机机组振动故障进行了测试分析，得出了结论及维修建议。

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The GGH seal air fan ensures zero leakage of the raw gas to the environment.

热交换器的密封风机以确保没有原烟气泄漏到环境中。

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Based on practical situations, the article introduces the influence of different type fan to gas instantaneous water heater combustion thermal efficiency when heat load changes.

文章从实际情况出发，介绍了燃气快速热水器在热负荷变化时使用不同类型的风机对燃烧热效率的影响。

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The new environment secretary, Owen Paterson, is a fan of shale gas.

ECONOMIST: The reshuffle

HLDI, an affiliate of the Insurance Institute for Highway Safety, is a big fan of hybrid technology to save gas, rather than buying a smaller car.

FORBES: Hefty Batteries Make Hybrids Safer, Study Finds

Instead of a pressurised gas container, the backpack uses a lithium-ion battery to power the airbag with a fan.

BBC: The ski gear that could save lives