“placic horizon”的概念、定义、翻译、参考文献-科学参考

单词	placic horizon
释义	placic horizon [`plā·sik hǝ`rīz·ǝn] ^GEOLOGY A black to dark red soil horizon that is usually cemented with iron and is not very permeable.
随便看	plane Poiseuille flow plane polarization plane-polarized wave plane polygon plane quadrilateral plan equation planer plane reflector plane sailing plane section plane strain plane stress plane surveying plane symmetry group planet plane table plane-table method planetarium planetary aberration planetary atmosphere planetary boundary layer planetary circulation planetary electron planetary gear train planetary geology

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