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多世代改良
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多世代改良
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农学
经济林育种
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advanced generation improvement
多世代改良
针对某特定树种的育种目标,依据该树种的生物学和林学特性、遗传变异特点和资源状况,采用轮回选择方法最大限度地提高每个世代内改良性状的遗传增益,维护育种群体广泛的遗传基础,最终实现长期改良目标的育种计划。
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stress and strain analysis for rock mass
stress and strain and temperature measurement of water project
stress avoidance
stress back analysis
stress-based solution method
stress birefringence
stress casualties
stress circle
stress components
stress concentration
stress concentrations
stress control standard for hydraulic structures
stress control training
stress coping
stress corrosion
stress corrosion cracking
stress corrosion cracking of oil and gas pipeline
stress corrosion cracking test
stress cracking
stress deviator
stress distribution
stress distribution of foundation
stressed Ge:Ga infrared array
stressed-lap polishing
stress effect of daodi herbs
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