There are mainly 4 key parameters of natural gas resource evaluation, including gas production rate, migration-accumulation coefficient, play evaluation parameters, and recovery rate.

天然气资源评价重点参数主要包括产气率、运聚系数、区带评价参数与可采系数等4项。

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Gas, liquid or electricity supply or production meters, including calibrating meters thereof.

生产或供应气体、液体及电力用的计量仪表，包括它们的校准仪表。

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The naphthalene content of coke oven gas can be reduced effectively through several measures, including improving production technology and management in naphthalene washing with diesel oil.

在焦炉煤气柴油洗萘中，通过改进生产工艺、加强生产管理等措施，可以有效地降低城市煤气中的萘含量。

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Most major oil companies are now involved in shale oil and gas production, including Exxon Mobil, Royal Dutch Shell and BP.

CNN: Vermont first state to ban fracking

That all-of-the-above approach includes many things that the President talked about on the campaign trail extensively -- investments in renewable energy, investments in biofuels, investments in nuclear technology including the construction of the first nuclear power plant in the United States in 30 years, and including expanded domestic oil and gas production.

WHITEHOUSE: Press Briefing by Deputy Press Secretary Josh Earnest

Preventing leaks also cuts back on other air pollutants associated with gas production and use, including such volatile organic compounds as ethane and butane.

WSJ: Is Natural Gas the Road to a Clean Energy Future?