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低合金钢 dīhéjīngāng
met. lean alloy steel; low-alloy steel (【技】合金元素含量较低的钢。在我国,通常将合金元素总含量 ≤5% 的钢称为低合金钢。低合金钢一般包括可焊接的低合金高强度结构钢、低合金耐候钢、低合金钢筋钢、铁道用低合金钢、矿用低合金钢等。); steel of low alloy content
space low alloy steel; low alloyed steel
tech. low alloy structural steel
低 合金钢
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