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Heilu soil
释义
Heilu soil
Encyclopedia
农学
黑垆土
释
Heilu soil
黑垆土
暖温带半干旱草原地区久经耕种的,具有覆盖熟化层段和下垫古腐殖质层段的土壤。相当于美国土壤系统分类中的半干润软土亚纲,与深厚表层的钙积或弱发育半干润软土土类大体相似;在联合国世界土壤图图例中,大部分相当于人为土。
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neutral complex
neutral current
neutral current, NC
neutral current sheet
neutral curve
neutral density disc
neutral [density] filter
neutral density filter
neutral detergent fiber
neutral differential equation
neutral earthing device of hydro-generator
neutral element
neutral equation
neutral equilibrium
neutral field
neutral field line
neutral filter
neutral fixed-point
neutral flame
neutral form
neutral fragment loss scanning
neutral gas
neutral grey filter
neutral grounding method of low-voltage distribution networks
neutral gyroscope
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