结果表明：显微硬度随表面至心部距离的增加而降低。
The results show that the microhardness decreases with increasing of the distance from the case to the core.
试验表明可疑数据与试样加工形状尺寸、试样热处理对中性、试样洛氏硬度试验送样装置对试样距离控制和各环节的规范操作有关。
The test results showed that the suspicious data was related to size of sample, concentration of sample heat treatment, control of sample submitting equipment on sample distance.
垂直于铣削加工面各点的显微硬度，随着距切削表面距离的增大而逐渐降低，且趋于平缓；
The microhardness of various point of milling working surface gradually reduces with the increase of distance of cutting surface, and then remains flat.
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