本文从理论上分析闭端管路系统发生谐振的条件，并给出了实例分析。
The condition of resonance oscillation for pipe-one-end-closed system was analyzed on theory, and an example was gived to analyze it.
将其测试结果与模拟试验结果进行了比较，为闭式循环4.4K制冷机的第一级主换热器的热端温差的合理选取提供了依据。
The basis for selecting the reasonable temperature difference at the hot end of the first main heat exchanger of close-cycle 4.4K refrigerator is provided.
本课题针闭于中邦电信传统的SCP蒙端入网计划里临的题纲，降出基于SHLR方式蒙端入网计划解决计划。
The topic for the China Telecom SCP on the far from the traditional network problems of the program put forward SHLR the way the program on the far network solutions.
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