rare-earth complex

Wu's poems full of Paladin complex were evidently rare treasures in the content-inanition Parnassus of the Qi and Liang dynasties.

表现吴均“游侠情结”的这类题材诗歌，在内容日益贫弱的齐梁诗坛显得尤为可贵。

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Self-fertilization is a risky strategy, which is why sex is so popular among large and complex organisms. 3 There areoccasionally complex animals that reproduce asexually, 4 but this behavior isrelatively rare.

所以说自体繁殖是个很危险的策略，这也是为什么在稍大、稍复杂的种群中，性是如此普遍的原因。3虽然有时一些高等生物也会无性繁殖，4但这种行为是相对罕见的。

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Petrologic and mineralogical data indicate its complex multi-stage metamorphic history. An earlier eclogite facies metamorphism ( p> 15 kbar) is deduced from rare omphacite inclusions within garnet.

岩石学和矿物学数据显示高压基性麻粒岩经历了多阶段变质历史，早期可能经历了榴辉岩相变质作用（p>15kbar），以石榴子石中保留的少量绿辉石为特征；

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