We compared the hot water process with the steam chamber process and found that the latter has the advantages of cost reduction and high productivity.

本文主要对水煮加热方式和蒸汽加热方式进行比较，认为蒸汽加热方式具有经济性好，生产效率高等优点。

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So all that hot water generated in a Siemens process is not needed.

因此，所有的西门子过程中产生的热水是完全没有必要的。

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To get usable oil from this mixture, producers have to separate the bitumen from the sand using hot water, and then process the bitumen into crude oil.

为了从混合物中得到油，开采者用热水把沥青跟沙子分开，再把沥青加工成原油。

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The roasting must be even, and the grinding process must be finely calibrated so that the resulting coffee allows smooth passage of the hot water that extracts the flavour.

ECONOMIST: Espresso coffee