接力项目包括了短跑的所有技术，尤其是要在高度紧张的竞争中完成接力棒的快速传接。但起关键作用的还是第一棒和最后一棒。
Relay RACES incorporate all the techniques of sprinting, especially the fast baton handoff in highly intensive competition. But the first and final legs usually play the most critical role.
他们围成一圈快速传花。
试验结果表明：采用快速点传火技术的传火管传火速度大大提高，点火压力增大，点火后燃烧稳定。
The result showed that, by using a quick ignition technique, the transmitting speed and ignition pressure of the flash tubes increased obviously, and more stable combustion were obtained.
试验结果表明：采用快速点传火技术的传火管传火速度大大提高，点火压力增大，点火后燃烧稳定。
The result showed that, by using a quick ignition technique, the transmitting speed and ignition pressure of the flash tubes increased obviously, and more stable combustion were obtained.
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