GQ80型罐车罐体底部母线“4点”2次划线法 Twice marking method for the "4 points" on baseline of tank bottom on GQ80 tank car期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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GQ80型罐车罐体底部母线“4点”2次划线法

摘要：
Twice marking method for the "4 points" on baseline of tank bottom on GQ80 tank car

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