The fatigue limit of metal can be increased after it is operated for a certain number of times under the stress below the fatigue limit. This secondary load strengthening effect is called secondary load exercise.

The fatigue limit of metals can be increased after running for a certain number of times under the stress below the fatigue limit. This secondary load strengthening effect is called secondary load exercise.

English translation skills:

1, omitting the translation method

This is contrary to the first addition translation method, which requires you to delete parts that do not conform to Chinese or English expressions, thinking habits or language habits, so as to avoid heavy and complicated translated sentences.

2, the merger method

Combinatorial translation method is to combine multiple short sentences or simple sentences into a complex sentence or complex sentence, which often appears in Chinese-English translation topics, such as attributive clauses, adverbial clauses and object clauses.