位置说明 Location description 默认观测点为北京天安门广场。请进入设置位置页面进行修改。 The default observation site is Tiananmen Square in Beijing. Please enter the settings page for modification. 在设置位置页面上，您可以直接点击地图上的任意点来设置位置，但精度不高。您可以通过手动定位来提高精度。 On the location page, you can directly click on any point on the map to set the location, but the accuracy is not high. You can improve the accuracy by manual positioning. 时间机器说明 Time Machine Description 单击“加速”或“减速”以更改时间流逝速度（速度可降至负值，时间倒流） Click Accelerate or Decelerate to Change Time Passing Speed (Speed can be as low as Negative, Time Backward) 单击“校准”将时间设置为计算机上的时间（时区不变） Click Calibration to set the time on your computer (time zone does not change) 点击绿旗时自动校准时间（时区不变） Auto-calibration time for each click on the green flag (time zone does not change) 信息栏说明 Information column description 计算不一定100%准确，误差不可避免，但我会尽量减小误差。 The calculation is not necessarily 100% accurate and the error is inevitable, but I will try to reduce the error.
请开启全屏模式 Please turn on full screen mode
