basic cycle meaning in Chinese

基本循环
基本周波
基本周期

Basic cycling skills
骑单车的基本技巧
Participants should have basic cycling knowledge and ensure that they can control the bicycles properly during uphill and downhill
参加者应懂得基本驾驶单车技术，能掌握上斜和落斜之技术。
The conclusion is that if an appropriate refrigerant mixture is used , the lhr cycle can have a relatively higher thermodynamic efficiency than that of basic cycle , in case their pressure ratios are the same . the thermodynamic efficiency can be further improved when the acr cycle is used
研究结果表明，正确地选择混合工质，在相同的压比下，可使lhr循环比基本循环具有更高的热力学效率，而采用acr循环可以较lhr循环更进一步提高循环的热力学效率。
Based on these , the tracks , characters and causes of economic periodic fluctuation in our country are emphasized . the characters and reasons of district economic periodic fluctuation are put forward . in the second chapter , the method of determining the basic cycle is introduced
本论文正是以此出发，在第一章中讨论了经济增长与经济波动之间的关系，阐明了经济周期的涵义，并介绍了解释经济周期发生原因的各种理论；同时着重说明了我国经济周期波动的轨迹、特征及产生原因；论述了我国地区经济周期波动的特征和原因。