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林木良种
释义
林木良种
Encyclopedia
农学
﹝良种生产﹞
释
elite variety of forest tree
林木良种
经过人工选育及严格的区域化试验,并通过本行业专家鉴定,证明在适生区域内的产量、质量和其他主要性状明显优于当地主栽树种或栽培品种,具有实际生产价值的林木繁殖材料。
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quarter-
quartering
quarternary structure
quarter period
quarter-square
quarter squares rule
quarter-wave line
quarter wave plate
quarter-wave plate
quartet
quartic
quartic curve
quartic equation
quartic equation with one unknown
quartic extension
quartic graph
quartic manifold
quartic parabola
quartic polynomial
quartic reciprocity theorem
quartic residue
quartics
quartic surface
quartic symmetric graph
quartic symmetry
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