对断齿齿面的宏观特征、微观形貌、显微组织和渗层深度进行了观察、测试与分析。
The macro characteristics, micro morphology, metallographic structure and carburized layer depth of the fractured teeth were observed and analyzed.
对比所获得的模态参数，可看出两种轮胎的模态参数明显地表征了它们的不同宏观特征。
It was concluded that the modal parameters of two types of tires reflect their different macroscopic properties evidently.
通过讨论海上石油钻井平台用管材空泡腐蚀失效的案例，研究管材空泡腐蚀的宏观特征和微观特征。
The macro and micro characteristics of vacuolar corrosion were studied; a failure case of vacuolar corrosion of petroleum pipe of seashore well-drilling rig was discussed.
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