过渡金属氮化物是一类金属间充型化合物，兼具有共价化合物、离子晶体和过渡金属的性质。
Transition metal nitrides belong to a class of interstitial compounds, have the properties of covalence compound, ion crystal and transitional metals.
杂多酸是一类金属氧化物的簇型配合物固体。
Heteropoly acid is a kind of cluster type compound of metallic oxide.
研究结果表明，该准则与一些试验结果吻合很好，它不仅可以广泛地用于分析岩土类材料的复合型断裂问题，而且也可以用于金属材料的断裂分析。
The consistence of the criterion with the test results indicates the criterion is suitable for analyzing mixed mode cracking not only of rock and soil but of metal as well.
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