确保你的相机在三角架上水平稳定。
取水平分区剪三角堆积层次并与第一分区不连接。
Take horizontal section cut a triangular graduation which disconnected with first section.
将照相机固定在三角架上或稳定的水平物体上。
Mount the camera on a tripod or place the camera on a stable, level.
将照相机固定在三角架上或稳定的水平物体上。
Mount the camera on a tripod or place the camera on a stable, level.
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