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siltigic epipedon
释义
siltigic epipedon
Encyclopedia
农学
土壤诊断表层
释
siltigic epipedon
灌淤表层
长期引用富含泥沙的浑水灌溉(siltigation),水中泥沙逐渐淤积,并经施肥、耕作等交迭作用影响,失去淤积层理而形成的由灌淤物质组成的土壤表层。属于人为表层。中国土壤系统分类中诊断表层之一。
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ultraspherical polynomial
ultrastability
ultrastable
ultrastable glass
ultrastable systems
ultrastrength material
ultrastrong
ultrastrong dual
ultrastrong operator topology
ultrastrong topology
ultrastructural pathology
ultrastructure
ultra-supercritical power generation technology
ultra telephoto lens, super telephoto lens
ultra-telescopic meteor
ultratelescopic meteor
ultrathin film
ultra-thin overlay
ultrathin section
ultra trace
ultratrace analysis
ultravacuum
ultraviolation
ultra-violet
ultraviolet
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