本文对断轴进行了宏观断口检查并对化学成分、力学性能、高低倍组织及微观断口进行了分析。
In this paper, the fracture surface of a failed axle was examined macroscopically. The chemical composition, mechanical properties, ma-cro-and microstructure of the fracture surface were analysed.
通过断口宏微观观察、金相组织检查、化学成分及硬度检测等手段确定了叶片断裂性质和原因。
The fracture mode and cause were analyzed and determined by fracture surface observation, metallurgical structure examination, chemical analysis and hardness testing.
为了判断口腔卫生的状态，每个受试者都要接受一个综合的口腔检查，检查包括两个可以反应口腔卫生的方面，即口腔内斑块的数量和是否存在牙龈炎症。
To determine oral hygiene status, each participant underwent a comprehensive oral examination including an assessment of plaque accumulation and gingival inflammation, both indicators of oral hygiene.
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