然后运用计量经济学的有关工具，实证检验了纽约商业期货交易所天然气期货市场的基本功能和其他的衍生功能。
Then using some econometrics tools and through some concrete evidence, the author tested the basic functions and derivative functions of futures market of natural gas in New York Mercantile Exchange.
上周二，在纽约商品交易所（New York Mercantile Exchange），天然气期货价格连续第三天反弹，上涨了1.2%，达到3.959美元/百万英热单位。
On Tuesday, natural gas futures rallied for a third day, gaining 1.2% in the New York Mercantile Exchange to $3.959 a million British thermal units.
安然公司(先前的纽约证券交易所股票代号东北东)是美国能源公司，总部设在得克萨斯州的休斯敦。这是一个世界领先的能源公司，涉及到电力、天然气、造纸和通讯。
Enron Corporation (former NYSE ticker symbol ene) was an American energy company based in Huston, Texas. It was one of the world's leading electricity, nature gas, paper and communications companies.
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