It is found that the gas flow is mainly controlled by instantaneous arc power and the maximum of gas flow appears not at peak pressure, but at current zero.

结果显示，气流的改变主要受电弧瞬时功率控制，最大流量不是发生于压力峰值时刻而是出现在电流过零时。

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The method of instantaneous value comparison for source current control of unity power factor rectifier possesses advantages of simplicity as well as valid restriction for maximum switching frequency.

在单位功率因数整流器中，利用瞬时值比较法来控制电源电流，不但控制简单，还可有效限制器件的最高开关频率。

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Thirdly the maximum instantaneous collision is found in interested interval. Calculation results prove that the method based collision probability can describe the collision risk nicely.

数值算例表明最大瞬时碰撞概率是描述交会对接近距离段两个飞行器碰撞危险程度的一个较好的指标。

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Regular activations shouldn't take more than an hour or two (ours were basically instantaneous) and ports from other carriers should take a maximum of 48 hours, but some unlucky individuals are still waiting to come online.

ENGADGET: Apple iPhone 3G S trouble roundup Mobile

With instantaneous focusing, the camera won't shake the moment the shutter is released, assuring maximum clarity and stability, even when shooting moving subjects.

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