End pumping is a simple pumping method in double clad fiber laser.

端面抽运是双包层光纤激光器的一种常见的抽运方式。

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Selection of pumping method is of importance in raising the performances of fiber lasers.

选择适当的抽运方式对提高光纤激光器的性能指标具有比较重要的意义。

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The pumping method has become the key factor which affects the output power of fiber lasers.

抽运方法已成为影响光纤激光器输出功率的关键因素，有比较重要的意义。

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It extracts oil from the ground using a method called fracking - pumping down a mixture of sand, water and chemicals at high pressure.

BBC: US to become 'world's biggest oil producer'

Other ideas include drilling into the aquifer beneath the city and pumping cool water along the tunnels (a method already used to cool the Royal Festival Hall), or installing chillers in the trains that would freeze blocks of ice while the trains were above ground which would then keep them frosty on the underground sections.

ECONOMIST: London Underground