介绍了地源热泵的工作原理、性能评价指标和基本类型；
The development of ground source heat pump (GSHP) at home and abroad is briefly introduced.
基于所定义的性能评价指标，对模拟星图进行了星图获取的实验验证。
Based on the figure of merit to objectively evaluate the performance of star acquisition approach, a number of experiments are carried out for the simulated star images.
算法利用网络平均空闲率作为算法的性能评价指标，结合提出的安全度计算公式，寻找传输路径。
This algorithm USES the network average idleness rate as an evaluation parameter, and searches for a transmission path according to a presented safety formula.
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