初生生长和次生生长 primary growth and secondary growth
原生演替和次生演替 primary succession and secondary succession
原始林和次生林 Primeval and secondary forest
原生和次生爆炸应力波 the primary and secondary blast stress waves
通过这次学习和生活 Through this learning and life ; Pass the studying and living ; Through this study and life
块状原丝体的产生紧随其后，其次是茎丝体、绿线体和次生根丝体。
The production of massive protonema immediately follows and then caulonema, chloronema and secondary rhizoides.
要正确地指出原始性状和次生性状仍然感到困难。
The difficulty of pinpointing primitive and derived characters remains.
火山岩先后经历了冷却成岩和次生成岩两个成岩阶段。
The volcanic reservoir experienced two phases of cooling diagenesis and secondary diagenesis.
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