operating system principle

基本解释

The structural design and the operating principle of the system were expounded.
详细论述了系统的工作原理和结构设计。
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The paper mainly deals with the structure and operating principle of this system.
本文主要介绍该系统的结构和工作原理。
So the third chapter focuses on the measuring system. The operating principle (Light extinction method), the factors which influence the result and the resolvent to avoid them are explained.
第三章对此磁致偏振特性测量系统的搭建及工作原理（消光法）、影响测量结果的因素及解决方法、实验操作步骤等作了说明。