Dense phase voidage can be estimated by cutting gas flow and following the rate of bed collapse.

采用切断流化床气源，并跟踪测量床面塌落速度的方法，可以测得浓相空隙率。

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Cutting gas is to ensure that the formation of plasma jet, and to ensure that remove the molten metal oxides and incision.

切割气体既要保证等离子射流的形成，又要保证去除切口中的熔融金属和氧化物。

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Factory workshop of the company holding the shield spot welders, fitters gloves hitting, drilling workers dig wearing flat mirror, wearing sunglasses cutting gas cutting work.

该公司机厂车间内焊工手持防护罩点焊，钳工戴着手套击打，钻工戴着平镜挖凿，气割工戴着墨镜切割。

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Earlier this week African delegates boycotted some talks because they said developed nations were not making concrete promises on cutting greenhouse gas emissions.

VOA: standard.2009.11.06

Britain is cutting down on its industrial gas use to save supplies.

VOA: standard.2010.01.10

Cutting greenhouse gas emissions may also prove expensive, though that depends on how it is done.

ECONOMIST: The defence of nature 2

Americans, was intended to punish Azerbaijan for cutting off gas supplies to Armenia.

CENTERFORSECURITYPOLICY: The Great Game: Where Happiness Is Multiple Pipelines

Cutting greenhouse gas emissions in line with the Scottish government's climate change targets will require some tough choices in future.

BBC: Climate change debate heating up