Based on the water tube tiltmeter observatory data, the author analyses the ground tilt tide, finds that the abnormal change of amplitude factors of EW and NS componts is corresponding to earthquakes.
对云龙台的水管倾斜仪观测数据进行了倾斜固体潮的潮汐分析，发现EW和NS两个分量的振幅因子异常变化与地震有较好的对应关系。
Was it abnormal that the man in the video passed through the girl as if there's nothing he could find on the ground?
男人在路过小女孩时视地上如无物，这很反常不是么？
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