据伯奇博士说，一旦这些激光器被断开后，用这种方式记录下来的数据能稳定地保留12 年以上。

Once the lasers are switched off, data recorded this way will, according to Dr Birge, remain stable for more than 12 years.

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在一台激光器和一个防震台的条件下，提出一种记录主全息图H1和彩虹全息图H2共用光路的实用设计布置方法。

We designed a useful arrangement of optical elements recording master hologram H1 and rainbow hologram H2 using one laser and one holographic-table.

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红宝石脉冲激光器和外同步触发信号结合实现了齿轮轮齿动态散斑图的记录。

Dynamic speckle photography of the gear tooth has been achieved by combining a pulsed ruby laser with the external synchronizing trigger signal.

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