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The aluminium-lithium alloy is a new light metallic material.
铝锂合金是一种新型轻金属材料。
youdao
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Vacuum heat treatment is the new technique in the heat treatment of metallic material.
真空热处理是金属材料热处理领域的新技术。
youdao
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Vacuum heat treatment is the new technique in the heat treatment of metallic material.
真空热处理是金属材料热处理领域的新技术。
youdao