简述了网络环境下图书馆统计工作的重要作用，以及如何丰富图书馆统计工作的内容。
This paper interprets the important role of the library statistics work and how to enrich its content.
商务班精英级：能简述自己的职业和公司概况，谈论工作内容，并初步建立标准的商务术语体系，累积掌握词汇6800。
Outstanding level: students can brief their own occupations, companies and their jobs, establish standard commercial terminology system. Over 6800 words will be accumulated and grasped.
本文简述了该系统的工作原理、组成结构和设计方法，并对传感器及微控制器的选用等内容进行了论述。
The working principle, hardware structure of the instrument and the design method are presented, the selection of sensor and MCU is discussed in detail.
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