By using digital millisecondmeter and phototube instead of manual operation,the improved trilinear pendulum experimental device improves measuring precision.
用数字毫秒计和管取代手工操作,使改进后三线摆实验仪提高了测量精度。
By using digital millisecondmeter and phototube instead of manual operation,the improved trilinear pendulum experimental device improves measuring precision.
用数字毫秒计和管取代手工操作,使改进后三线摆实验仪提高了测量精度。
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