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- AC resistance loss 交流电阻损耗
- At low frequencies, the DC resistance of a given conductor is essentially the same as its AC resistance. 在低频情况下,给定的导体的直流电阻实际上与其交流电阻一样。
- The AC/DC standard resistor is a resistance standard, which can be used in calibration of DC resistance and AC resistance. 交/直流标准电阻器为适用于直流及交流电阻校正之电阻标准器。
- The new muffler device has simple structure,it has lesser effect on the resistance loss of chief ventil... 该消声装置结构简单,对主要通风机的阻力损失影响小,防尘、防潮及降噪效果明显,可广泛的应用于煤矿主要通风机的消声降噪。
- For example, the Capacity of Jet Fanin tunnel,the flux distribution and resistance loss in the chimney. 重点研究了射流风机在隧道内的的调压性能,竖井三通的气流分布以及局部阻力损失。
- When the pipe diameter ratio varies a little,the local resistance loss of sudden contraction changes insignificantly. 存在一个最佳弯径比,使得水平弯管的局部阻力损失最小。
- Presents the theoretical calculation formula and performs experiments of frictional resistance loss for PP-R hot water pipes. 给出了PP-R热水管沿程阻力损失的理论计算公式,并对其进行了实验研究。
- According to the analysis on pressure of three kinds of duct systems,concludes that the total pressure of a fan should be equal to the resistance loss of the duct system. 通过对三种风道系统的压力进行分析,认为应根据风机全压等于风管系统阻力损失来选择风机。
- The predictions of resistance loss using CFX for two configurations of silencers are compared with experimental results, and the relative error is within 5%. 用CFX计算了两种结构水消声器的阻力损失,并与实验结果进行了对比分析,其误差控制在5%25以下。
- The requirements of high characteristic liquid crystal light valve on AC resistively of amorphous silicon (a-Si) photoconductive layers is discussed by equal circuit. 利用等效电路,估算出高性能液晶光阀对非晶硅光电导层交流电阻率的要求。
- In comparison with other centrifugal gas-liquid separators, the resistance loss of the axial flow guide vane type gas-liquid cyclone separators was less. 轴流导叶式气液旋流分离器与其他离心式气液分离器比较,其特点是阻力损失小。
- The a-Si films is deposited by plasma enhanced chemical vapor deposition technique with the optimum technology.The AC resistively of sample is measured. 用化学气相沉积法在最佳工艺条件下制备了非晶硅薄膜,测量了样品的交流电阻率。
- Abstract: Numerical simulation is carried out for three-dimensional flow in three types of undulated pipes with different geometrical condition, for analysis on resistance loss of flow in bend duct. 摘要:为分析弯曲管道内部流体流动的阻力损失,分别对不同几何条件下的3种波浪管内部流动进行了数值模拟。
- Air valve size and airflow resistance losses of valves always speed and the size of the spring-loaded edge. 气阀阻力损失大小与气流的阀隙速度及弹簧力大小有关。
- The development of AC resistance standard investigation 交流电阻标准研究进展
- along regulation resistance loss 沿程阻力损失
- Her resistance to the proposal has crumpled. 她对这个建议的抵触情绪已化为乌有了。
- From the air valve operating principles of view, air valve performance will directly affect the work of compressor tanks, air valve for the following requirements : resistance losses small. 从气阀工作原理来看,气阀工作性能将直接影响压缩机气缸的工作,因此,对气阀有如下要求:阻力损失小。
- Each of the bulbs has a resistance of120 ohms. 每一盏灯泡有120欧姆的电阻。
- Copper has less resistance than lead. 铜的电阻比铅的小。