... material implication 实质涵蕴 material equivalence 实质等式 material meaning 实质意义 ...
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material equivalence method 材料等效法
fissionable material energy equivalence 可裂变物质能量当量
Standard of equivalence of armor plate of the aluminous material of metallic stuff die-casting of water heater, cathode copper, cold rolling, galvanization armor plate has litres bigger.
热水器的金属材料压铸铝材、电解铜、冷轧钢板、镀锌钢板等价格都有较大升幅。
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