About 40 minutes before the aftershock, local residents said the weather in Hanzhong City became overcast and high winds began to blow. Mobile communication was in failure for a while.
余震发生40分钟后，当地居民说汉中的天气变阴了，刮起了大风，手机信号一度中断。
Seven-Segment display using digital tube were overcast. The tester has a simple structure, low cost, high accuracy, convenient and practical and so on.
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。
Qingyun not move at slightly overcast, no wind, high-Autumn trees deep.
轻云不动日微阴，高树无风秋色深。
Qingyun not move at slightly overcast, no wind, high-Autumn trees deep.
轻云不动日微阴，高树无风秋色深。
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