天然气的能量测定方法研究是天然气能量计量体系的配套技术。
The natural gas energy measurement method research is the assorted technology of the natural gas energy metrology system.
天然气的能量测定方法研究是天然气能量计量体系的配套技术。
The natural gas energy measurement method research is the assorted technology of the natural gas energy metrology system.
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