短促声波开始短促声波从起动频率对结束频率播放。
Chirp up the chirp is played from start frequency to the end frequency.
本文推导出了变频调速及软起动的频率最低限，发现了软起动的最佳起动频率。
This paper induces the lowest limit of frequency for variable-frequency adjustable speed and soft starting, gets the best starting frequency for soft starting.
电机的加减速采用平滑的正弦曲线，满足电机的起动频率和运行频率，减少了系统的冲击。
The smooth sine speed wave is adopt in order to satisfying motor's stating and moving frequency. The sine speed wave reduces the impact of the sy...
短促声波结束短促声波从起动频率对结束频率播放，然后重新回到播放短促声波时定义的频率。
Chirp up down the chirp is played from start frequency to the end frequency and again to the start frequency in time defined by play chirp time.
说明植物坝可以减小泥沙的起动拖曳力，降低上游泥沙的起动频率，并能使运动的泥沙在坝上游沉积下来。
These show that vegetation dam can reduce starting drag force and starting frequency of sediment in upper reaches. And can make athletic sediment deposit.
介绍了用于感应电机起动的离散频率控制方法。
A discrete frequency control method is proposed for thyristorized static switch.
即IC611。电动机允许在额定电压和额定频率下直接起动。
The motor is permitted to directly start in conditions of rated voltage and rated frequency.
即IC611。电动机允许在额定电压和额定频率下直接起动。
The motor is permitted to directly start in conditions of rated voltage and rated frequency.
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