显示器采用七段共阴数码管。该测试仪具有结构简单，成本低廉，精度较高，方便实用等特点。

Seven-Segment display using digital tube were overcast. The tester has a simple structure, low cost, high accuracy, convenient and practical and so on.

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可直接驱动液晶显示器，增加适当的驱动电路可采用数码管显示。

It is possible to drive liquidcrystal display directly, and to use the digital tube demonstration by increasing the suitable actuation electric circuit.

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同时采用数码管led和LCD液晶显示器动态显示“时”，“分”，“秒”的现代计时装置。

At the same time the use of digital control LED and LCD LCD dynamic display "when", "sub", "second" modern timing devices.

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同时采用数码管led和LCD液晶显示器动态显示“时”，“分”，“秒”的现代计时装置。

At the same time the use of digital control LED and LCD LCD dynamic display "when", "sub", "second" modern timing devices.

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