跳弓

二胡自然跳弓是一种很有舞台效果的演奏技巧。

Spiccato of Erhu is a very natural dance stage effect bow playing skills .

节拍重音的强调，增强了自然跳弓演奏的律动感，使节奏型更清晰。

Emphasis on the beat stress , and enhance the natural jumping bow playing rhythm , the rhythmic patterns more clearly .

文章还分析了再生制动时主变流器的换相过程，并对跳弓拉弧时引起再生颠覆的原因也作了说明。

The main converter commutation process due to regenerative braking is also analyzed , and reasons of regenerative overturn caused by pantograph jumping and arcing are explained .

本文最后给出了机车牵引四象限变流器带主流程工作的部分实验波形，包括启动波形、空载波形、突加减负载波形、跳弓过分相波形。

Finally , experiment that four-quadrant converter working with main flow waveforms including start-up wave , empty-load waveforms , sudden load and subtraction load waveforms , neutral-section passing and pantograph jumping process waves will be showed .