求翻译：了解常用仪器的性能，并学会使用方法。例如：测长仪器、计时仪器、测温仪器、直流电表、直流电桥、电位差计、通用示波器信号发生器、分光计、常用电源和常用光源等是什么意思？

Understand the performance of commonly used instruments, and learn to use. Such as: the length measuring instruments, timing devices, thermometer device, DC Table, DC bridge, potentiometer, universal oscilloscope signal generator, spectrometer, common power and common light source

Learn about common equipment performance, and learn how to use it. For example: measuring instruments, chronograph, and temperature measurement instruments, DC power, DC power, potential difference, universal scope signal generator, solar power and commonly used, commonly used light sources, etc.

Understands the commonly used instrument the performance, and academic society application method.For example: Length measuring instrument, time instrument, temperature-measuring device, direct-current electric instrument, direct-current bridge, potentiometer, general purpose oscilloscope signal gen

Understand the properties of commonly used instruments, and learn to use the method. For example: length measuring instruments, Chronographs, measuring instruments, DC meter, DC bridges, potentiometer, general purpose Oscilloscopes, spectrometers, used power and signal generator used light source

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