The Standard &Poor’s 500 Index dropped 0.3 percent to 1, 117.62 at 9:34 a.m. in New York after sliding 1.4 percent yesterday.

截止到纽约时间上午9点34分，标准普尔500指数继昨天下挫1.4%后，今天开盘下跌0.3%，至1117.62点。

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The LQR design makes sure the system performance index is satisfied, while the sliding mode control restrains the disturbance exterior, as well as makes sure fast dynamical response.

线性二次型优化设计可以满足系统的静态性能指标要求，而滑模变结构控制抑制了外部干扰的影响，并保证了系统的快速动态响应。

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The overall reliability index is defined as the smallest one of the whole possible sliding surfaces.

被定义为最小的一个的全部可能的滑动面的整体可靠性指数。

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The Euro is sliding against the dollar and European stock bourses and U.S. stock-index futures fell overnight.

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Precious metals were the best-performing sector within the index, gaining 6.82%, while grains were the worst-performing sector, sliding 9.72%, he said.

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