一道激光射线由或短或长的光脉冲组合而成，从而能在一个安全的距离高精度地辨别单个的分子。

A laser beam like the one pictured up top combines short and long pulses of light to identify individual molecules with a high degree of precision from a safe distance.

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生产线可实现卡车底盘纵梁及车厢边框的冲制，具有精度高、生产周期短、灵活性强等优点，并可大大减少生产环节的库存量。

The line can punch the truck chassis side-member and side panel of carriage with high precision short period and high agility and reduce the storage in production greatly.

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系统成本低，延时短，开关速度快，输出电压精度高。

This system cost lower, delay times shorter, switching speed faster, output volt-age accuracy higher.

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