The results showed that MLDH and product MLDH-FU belonged principally to a six square crystal series (R-space group), were magnetic compound crystal phase mixed trace iron oxide.

结果表明，MLDH及离子交换产物MLDH-FU是以六方晶系为主、混杂微量氧化铁的磁性复合晶相；

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The title compound C11H10O4 has been synthesized and its crystal structure was determined by single - crystal X-ray diffraction.

标题化合物c11 H 10o4的晶体结构用x -射线单晶衍射法测定。

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Transition metal nitrides belong to a class of interstitial compounds, have the properties of covalence compound, ion crystal and transitional metals.

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。

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Hydrogen was indeed found, but it is still unclear whether it is in the form of ice, or of some other hydrogen-containing compound, such as hydrated minerals that have water bound chemically into their crystal structures.

ECONOMIST: Creative destruction