该仪器具有测量精度高，自动量程切换，电导率值直读显示，操作简单等优点。
The instrument has high measurement accuracy, automatic switching range, the conductivity value of direct reading, the advantages of simple operation.
具备232通讯、自动选择量程、数据锁定、数字显示、易操作等功能。
With 232 communication, selection range automatically, data lock, data display, operating easy and so on.
结合实例，阐述了液压锤的最佳操作规程，建议打击能量程序化。
The principle of hydraulic shock and noise with the false operation of hydraulic hammer was studied.
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