Natural gas caloricity gaging is more scientific and impartial than volume gaging and mass gaging.

天然气热值计量是比体积和质量计量更为科学和公平的计量方式。

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Natural gas caloricity gaging is more scientific and impartial than volume gaging and mass gaging.

天然气热值计量是比体积和质量计量更为科学和公平的计量方式。

youdao