Beijing has used license plate restrictions to limit the number of cars and set out plans to keep the oldest and most polluting vehicles off roads when air is especially bad.

北京通过车牌限制来限定汽车数量，并在空气特别糟糕的时候制定计划限制最古老和污染最严重的车辆上路。

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For simply supported annular plate under linear load, the limit load analysis was investigated by applying unified strength theory.

对于线性荷载作用下外简支环板，引入统一强度理论，进行了极限荷载分析。

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In the range of incident velocities near to the perforation limit velocity (V50), this mechanism depends on thickness and interlaminar shear strength of composite plate.

在接近穿孔极限速度的入射速度(V50)范围内，这一机制依赖于复合材料板的厚度和中间层剪切强度。

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If Microsoft wants to limit its devices to WMV-only, it's got to step up to the plate and deliver some consumer-level transcoding tools.

ENGADGET: The Clicker: Dear Microsoft, "help me help you."