1、

Thus, the optical constants of metallic films and contamination layers on its surface could be determined precisely by using the SPW technique.

因而利用SPW技术可以精确地确定金属膜及其表面污染层的光学常数。

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2、

the grey relational grades among weight contamination, wear particle content, wear severity index and wear metallic elements ( fe, cu) were calculated based upon the grey system theory through contamination degree test, spectrometry and ferrography analysis.

通过对机械设备在用润滑油的污染度检测与光、铁谱分析试验,运用灰色系统理论,计算了重量污染度与磨粒浓度以及磨损金属元素(Fe,Cu)之间的灰色关联度。

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