Grey scale processing is to convert the colorful image to grey scale one, in order to reduce storage space and raise operation efficiency.
图像灰度化即是将真彩色的车辆图像转变成灰度图像，目的是减少其电脑存储空间和提高运算效率。
After analyzing the existing operational problems and reasons for low efficiency, the paper points out ways to raise operation efficiency of wagons.
通过分析货车运用中存在的问题及揭示货车效率不高的原因，同时指出提高货车运用效率的对策。
After analyzing the existing operational problems and reasons for low efficiency, the paper points out ways to raise operation efficiency of wagons.
通过分析货车运用中存在的问题及揭示货车效率不高的原因，同时指出提高货车运用效率的对策。
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