他们有可能被过度优化，以表现出了极好的测试的成果，当你试图使用它们时，就不行了。
They have probably been over-optimized to show excellent back-tested results and won't work when you try to use them.
在平行于放置被摄物体的位置上把有距离标尺的测试图表放置于一个斜面上。
Next to the parallel target, a patterned chart with a distance scale is placed on an incline.
在平行于放置被摄物体的位置上把有距离标尺的测试图表放置于一个斜面上。
Next to the parallel target, a patterned chart with a distance scale is placed on an incline.
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