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心土层
释义
心土层
Encyclopedia
农学
土壤层次
释
middle layer
心土层
位于表土层与底土层之间的土层。通常指表层以下至50厘米左右深度的土层。厚度20~30厘米。因位于土体中部而得名。
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animal population landscape
animal power
animal production
animal products acquisition processing machinery
animal products processing science
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animal protection
animal protein beverages
animal psychology
animal receptor cells
animal regeneration
animal-related injury prevention
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Animal Reproduction Science
animal reproductive disorders
animal reproductive strategy
animal requirements
animal residues
animal resources of China
animal rights
animal rights theory
animals and plants diseases and insect pests prevention treatment law
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animal seminoma
animal sense organs
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