由于输电线路具有典型的规模经济效应，所以输电线路呈现垄断的经济特性，必须加以管制。
Since transmission system appears typical scale economy characteristics, it owns monopoly power, therefore transmission system pricing must be regulated.
本文用实验方法研究了小流量涡流管制冷的特性。
An experimental research on the performance of a small flow vortex tube is introduced.
线性压缩机、回热器、脉冲管以及惯性管的耦合特性对高频脉冲管制冷机的整机性能有很大的影响。
Matching characteristics among linear compressor, regenerator, pulse tube and inertance tube have large impact on the performance of high frequency pulse tube cryocooler.
级间热桥的传热特性对于热耦合型多级脉管制冷机的制冷温度和制冷效率均具有重要影响。
The cooling temperature and the efficiency of a thermally coupled multistage pulse tube refrigerator are significantly influenced by the heat transfer characteristics of the heat bridge.
本文介绍了一套高频气耦合型两级脉冲管制冷机的性能特性，该脉冲管制冷机可以达到16。
This paper introduced the performance of a high frequency gas-couple two-stage PTC, which has reach the lowest temperature of 16.
在晶体管制作过程中采用了发射极-基极金属自对准、空气桥以及减薄等工艺改善其功率特性。
Base emitter metal self aligning, air bridge, and wafer thinning are used to improve microwave power performance.
研究了母管制蒸汽锅炉控制系统大延迟、大滞后的工作特性，分析了一般模糊-PID控制器的控制特点，在此基础上给出了一种改进算法。
The characteristics of steam boiler temperature control system with large delay and lag is studied. An improved method is presented based on analyzing the characteristics of current Fuzzy-PID control.
本文采用数值模拟和实验研究的方法对高频脉冲管制冷机的重力特性进行了对比研究。
Experiment investigation on multi-bypass and fixed phase shifter comparison in single-stage high frequency pulse tube cryocooler;
本文采用数值模拟和实验研究的方法对高频脉冲管制冷机的重力特性进行了对比研究。
Experiment investigation on multi-bypass and fixed phase shifter comparison in single-stage high frequency pulse tube cryocooler;
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