梁家辉自信从容， 乐观淡定，艺德人品皆出众。
His personality of confidence, calm, optimistic and indifference makes him outstanding.
辉铋矿与闪锌矿、磁铁矿共生的多金属矿石较少见，具有一定的典型性。
Polymetal ore containing bismuth glance, sphalerite and magnetite is rarely seen and typical.
疲劳辉纹的形貌特征和位向有一定的相关性。
The correlative nature is revealed between the morphology and orientation of the striations on fatigue fracture surfaces.
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