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单词 耐火
释义 〔flameproof〕Resistant to catching fire; flame-retardant.防火的:能防止着火的;耐火〔zirconium〕A lustrous, grayish-white, strong, ductile metallic element obtained primarily from zircon and used chiefly in ceramic and refractory compounds, as an alloying agent, and in nuclear reactors as a highly corrosion-resistant alloy. Atomic number 40; atomic weight 91.22; melting point 1,852°C; boiling point 3,578°C; specific gravity 6.56 (20°C); valence 2, 3, 4. See table at element 锆:一种有光泽的、坚固的、可伸展的灰白色金属元素,主要从锆石中提炼。作为合金剂在陶器制造和耐火化合物中大量使用,而在核反应器中用作一种高度抗腐蚀合金。原子序数40;原子量91.22;熔点1,852°C;沸点3,578°C;比重6.56(在20°C时);化合价2,3,4 参见 element〔firestone〕A fire-resistant stone, such as certain sandstones.耐火岩石:耐火石,例如某种沙石〔fireproof〕Impervious or resistant to damage by fire.防火的,耐火的:不受火损害或抵抗火的
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更新时间:2024/11/26 16:53:28