The fractography of the fatigue crack initiation displayed cleavage facet and more second cracks after pre-training.

裂纹形成的断裂为穿晶解理机制，预应变可导致更多的二次裂纹。

youdao

In charge of pre-training preparation, including communicating with customers and trainers, arranging logistics, modifying slides and printing training manuals.

负责协调培训项目前期的准备工作，包括与客户及讲师沟通，安排行政事宜，教材准备与打印等；

youdao

The COCs also support pre-deployment training at locations in the United States.

COCs也支持美国本土的部署前训练。

youdao

Many start with various pre-pre-school training schemes that will, with luck, lead to the ultimate goal: a post-graduate degree from a prestigious foreign or domestic university.

CNN: LITTLE EMPERORS

Should, as expected, the deal be concluded by 30 June, Ronaldo would report for training on 10 July ahead of a pre-season training camp in Dublin, Ireland, which will include a friendly.

BBC: Ronaldo confident of Real switch

The Youth Zone will support an additional 250 NEETS (not in education, employment, or training), and the shop will also offer pre-employment training, literacy and numeracy support.

BBC: Coventry job shop reopens in larger premises