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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The accurate control of single pulse discharge energy is one of key techniques in micro-EDM.

放电单脉冲能量的精确控制是实现微细电火花加工的关键技术之一。

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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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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