Stable and uniform large aperture discharge is the key technology to obtain high pulsed energy.

实现稳定、均匀的大体积放电，是获得高单脉冲能量的必经途径。

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That surface area was key to allowing the new device to hold and discharge electricity very efficiently.

这表面积的关键使这种新设备的拥有和履行电力的效率。

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The key to treating waste water of polyester production is to control the source discharge and reduce the abnormal pollutant.

聚酯生产的废水处理关键是要控制源头排放，减少非正常的污染物。

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Dr Foster, the research group he works for, looks at four key measures - deaths in hospital, deaths within 30 days of discharge, deaths after surgery and deaths among patients in low risk conditions.

BBC: Why death rates aren't an exact science