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1·There is a return stroke after the lightning hits the ground.

在闪电击向地面以后出现了一次回击。

2·There are some differences for the mean of return stroke currents in different regions.

不同地区地闪回击电流平均值略有不同。

3·Eventually a negative stepped leader travels downward and reaches the ground, creating a return stroke.

最终一个下行传播的负极梯形先导接触到地面，制造了一次回击。

4·The bright return stroke travels upward at around half the speed of light, and is too fast to capture in more than one image.

闪亮的回击以光速的一半速度上行传播，由于它的速度太快，在一张图象中不能捕捉到这一过程。

5·This upward leader connects with the downward leader and a return stroke occurs. Five more dart leader-return strokes follow.

上行先导与下行先导连接，于是产生了一次回击，随后又是五次以上的直窜先导型回击。

6·Self-locking conditions of return stroke of swing movable teeth are deduced and methods to overcome self-locking are obtained.

导出摆动活齿传动空回行程不自锁条件，并给出克服自锁的方案。

7·A kind of calculation method for outputting motion error and return stroke error Angle of less toothed gear drive system was provided.

提供了一种少齿数齿轮传动系统输出运动误差和回程误差角的计算方法。

8·The results show that Non-continuous current stage was a important condition for triggered the dart-leader and the subsequent return stroke.

结果指出：“无连续电流阶段”是激发直窜先导和继后回击的重要条件。

9·Top technology and advanced design make force deployed evenly on the frame and lower the air resistance for a stable and prompt return stroke.

顶尖工艺与先进设计，让拍框均匀受力、降低风阻，回球稳定快速。

10·The lightning branches out in many different directions, causing one leader to make a connection with the ground, creating a bright return stroke.

闪电在许多不同的方向长出分叉，激发了一个先导与地面连接，制造了一次闪亮的回击。

回击

1·The bright return stroke travels upward at around half the speed of light, and is too fast to capture in more than one image.

闪亮的回击以光速的一半速度上行传播，由于它的速度太快，在一张图象中不能捕捉到这一过程。

2·The lightning branches out in many different directions, causing one leader to make a connection with the ground, creating a bright return stroke.

闪电在许多不同的方向长出分叉，激发了一个先导与地面连接，制造了一次闪亮的回击。

3·There is a return stroke after the lightning hits the ground.

在闪电击向地面以后出现了一次回击。

4·Eventually a negative stepped leader travels downward and reaches the ground, creating a return stroke.

最终一个下行传播的负极梯形先导接触到地面，制造了一次回击。

5·This paper introduces the design idea of Lightning Direction Finder and lightning return stroke models. The technique of accurate orientation as well as its realization is discussed.

介绍了雷电方向探测的设计思想和地闪回击模型，讨论了地闪的精确定向技术及其实现，给出了雷电方向探测仪的主要技术性能和参数。

回程

1·A kind of calculation method for outputting motion error and return stroke error Angle of less toothed gear drive system was provided.

提供了一种少齿数齿轮传动系统输出运动误差和回程误差角的计算方法。

2·The conveyer can not only work in a long distance and ultra width, but also ensure the return stroke of the belt is stable, and meet the use requirements of large conveying capacity.

该输送机不仅能长距离超宽运行，还能保证皮带回程平稳，满足输送量大的使用要求。