The principle and structure design of an quantitative instrument for cracks on wire are described.
本文介绍了钢丝裂纹定量检测仪的工作原理及其组成。
DESIGN: Grade sampling, randomized controlled quantitative analysis.
设计：分层抽样，随机分组对照，量效分析。
DESIGN: Grade sampling, randomized controlled quantitative analysis.
设计：分层抽样，随机分组对照，量效分析。
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