GM (1, 1) model of Grey System Theory is used in prediction realm.

在预测领域，灰色系统理论使用的是GM(1,1)模型。

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All parameters in the basic solution form of GM (1, 1) can be determined with this method.

本文提出了确定GM(1,1)模型基本解有关待定参数的一种新方法——图解法。

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Estimation of GM (1, 1) model parameter usually adopts the least square criterion, but test of model precision often USES average relative error criterion.

估计GM(1,1)模型中的参数通常采用最小二乘准则，而在模型精度检验时又常采用平均相对误差。

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The EV-1 was on the market in the 1990s, but GM discontinued it because of impracticality.

VOA: standard.2010.07.30

Some lucky survivors of the first edition, which was a contemporary of the GM EV-1, somehow managed to escape the crusher and are still on the road with Ed Begley Jr.

FORBES: 10 cars I expect to see at the L.A. Auto Show

An EU ruling says foods labelled non-GM can contain up to 1% of GM ingredients.

BBC: GM crops 'may contaminate others'

Today there are almost 700, 000 GM retirees and just 70, 000 active workers, a 10-1 ratio.

FORBES: GM Loosening The Noose From Its Massive Pension Plan