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.

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它利用了纽约商业期货交易所(Nymex)在采用屏幕式交易系统方面的耽搁，几乎攫取了Nymex三分之一的原油期货市场。

It took advantage of Nymex's delay in moving to screen-based trading to grab almost a third of its crude-oil futures business.

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