n.转速计
In contrast with traditional methods, the use of tachometer and other special hardwares is avoided in the mothod so the application of order analysis is simplified. 和传统方法相比，本方法无需转速计和鉴相装置等辅助硬件手段，简化了阶比分析的实现。
n.[医]心动计数器；心率计
