Harry seized it by its rubied hilt and touched the tipof the blade to a silver flagon nearby, which did not multiply.
哈利抓住嵌红宝石的剑柄，用剑尖碰了一下旁边的一个银酒壶，它没有复制。
2
The real time measuring system of high speed rotating blade vibration, tip timing sensor, pulse signal sampling system and analysis processing ofblade vibration signal are researched.