介绍烃类水蒸气转化制氢工艺对原料的要求，加烯烃、 芳烃、硫、砷和氯等杂质的含量，以及轻油的干点等。
Feedstock demands meeting hydrocarbon steam reforming process including impurity contents of olefins, aromatics, sulfur, arsenic and chloride, as well as dry point of light fraction were introduced.
其中之一是通过蒸发的方式，把液态水转化为水蒸气——来减少海洋中的水分。
One of these is the subtraction of water from the ocean by means of evaporation—conversion of liquid water to water vapor.
其中之一是通过蒸发的方式即把液态水转化为水蒸气来减少海洋中的水分。
One of these is the subtraction of water from the ocean by means of evaporation - conversion of liquid water to water vapor.
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