常采用金属与非金属组合的形式。
Often used in the form of combination of metal and nonmetal.
说明金属与非金属的区别是不难的。
It is easy to tell the difference between metal and nonmetal.
高温下非金属材料和金属材料的复合问题；
The compound problem with nonmetal and metal under high temperature.
高温下非金属材料和金属材料的复合问题；
The compound problem with nonmetal and metal under high temperature.
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