The deficiency of N or P in artificial seawater would lag the time of gametophyte formation and affect the differentiation ratio of female-male gametes.

人工海水中氮、磷营养盐的缺乏会导致海带配子体形成时间的滞后，并对其雌雄分化产生一定影响。

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The Jiaodong event, which took place after formation of the Archaean Jiaodong Group, caused the first phase of N-S structures and syntectonic granulite facies metamorphism.

继太古代胶东群形成之后的胶东事件，在胶东群中造成了第一期的南北向构造和同构造麻粒岩相高级区域变质。

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Three types of N? chloroacetyl substituted nitrogen? containing benzoheterocycles were introduced into pyrimidine by the formation of thioether.

三种n-氯乙酰取代的苯并含氮杂环化合物通过硫醚键的形成被导入嘧啶结构。

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