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试验的目的是为受电弓架结构优化设计和实际使用提供科学依据。
The objective is provided scientific basis for the optimization design of its structure and the practical application.
youdao
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试验的目的是为受电弓架结构优化设计和实际使用提供科学依据。
The objective is provided scientific basis for the optimization design of its structure and the practical application.
youdao