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Terms for subject Animal husbandry containing 改进 | all forms | in specified order only
ChineseEnglish
农业改进farm improvements
改进的同期牛平均值分为两种: ①MCI,每一头女儿的同期牛第一泌乳期产奶量的校正平均值;②MCL,同期牛第二泌乳期以后各胎次产奶量的校正平均值。用来计算 PD 值modified contemporary average
改进的同期牛比较是评定种公牛较先进的方法modified contemporary comparison
改进的同期牛比较法modified contemporary comparison
改进的同期牛离差均值被测定种公牛的每头女儿产奶量与改进的同期牛平均值 (MCA)之差的校正值modified contemporary deviation
肉质改进meat modifier
辐合改进以杂交、回交、自交等方法对异花受粉植物进行育种的方法convergent improvement