埋置深度embedment depth; depth of tunnel 覆盖厚度overburden of tunnel; covering depth 隧道建筑限界tunnel structure gauge; clearance fro traffic tunnel ..
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覆盖层厚度 cover thickness; coverage thickness; covering depth; depth of cover; thickness ..
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Objective The study aimed to research the effect of litter layer,covering depth and their interaction on germination and early growing of Atremisia frigida.
目的研究枯草层和覆土深度及其互作对冷蒿种子萌发和早期生长的影响。
参考来源 - 枯草层和覆土深度对冷蒿种苗建植的影响·2,447,543篇论文数据,部分数据来源于NoteExpress
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