A new multi-circuit test pens has simple structure, easy installation, small size and easy to carry, strong function and versatile.
新型多用途电路测试笔，结构简单、安装调试容易，体积小巧，携带方便，功能强、用途广泛。
It consists of software packages of modular structure compiled in Advanced BASIC and proves to be easy to test, modify and increase in function, etc.
它是用高级BASIC语言编制的软件包，并采用模块化结构，具有便于调试、修改及功能扩充等优点。
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