Measurement of the surface gloss of all kinds of metallic and non-metallic materials and their coatings.
各种金属和非金属材料及其涂镀层表面的光泽测量。
2
Using the surface impedance and the input impedance respectively, the impedance per phase for the solid rotor steel and the non-ferrous metallic slot wedges is calculated.
应用表面阻抗与输入阻抗概念，分别计算实心的转子铁心与非磁性金属槽楔的一相阻抗。
3
Glass is a kind of high-strength inorganic non-metallic material, but because of the micro-crack in the surface, glass actual strength is less one - percent of its theoretical strength.