But the step motor efficiency is low, the ability is not big, load drag pulse equivalent cannot too big, speed range is not big.
但步进电机的效率低，拖动负载的能力不大，脉冲当量不能太大，调速范围不大。
Experiments and simulations show that the proposed system can operate in audio switch frequency range without audio noise from the motor load, meanwhile, EMI can be limited to low level.
实验与仿真结果表明：该系统采用音频开关而不导致电机负载的音频噪声，同时使EMI能被限制在低电平。
Its estimation range is large, about of the symbol rate, while the algorithm proposed requires a very low computational load and is very easy to implement with digital hardware.
可估计的载波频差范围是大的，约为符号率的，并且算法所需的计算负载非常低，适合数字硬件实现。
The novel converter has advantages such as wide ZVS load range, low circulating energy and low duty cycle losscomparing to the traditional PSFB-ZVS-PWM converter.
与传统电路相比，它具有较宽的零电压开关负载范围、较小的环流能量和较小的占空比损失。
Considering its colourable and castable nature, its extended hardness range, low wear and superior load bearing capacity, polyurethane is a smart substitute for rubber.
考虑到着色和浇铸料的性质，选择具有更大硬度范围，低磨损，优越承载能力的聚氨酯替代橡胶是明智的。
The performances of diesel engine are improved by higher swirl in the operating range of low speed and high load.
在高速区降低进气涡流强度，发动机的性能和排放均有明显改善。
The performances of diesel engine are improved by higher swirl in the operating range of low speed and high load.
在高速区降低进气涡流强度，发动机的性能和排放均有明显改善。
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