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to phrases
循环选择
agric.
cyclic selection
;
cyclical selection
;
round robin select
循环选择
此法是用一个标准测交系与其他血统的新系群杂交,根据杂交效果选择新系群的牲畜留作种畜,并逐代反复进行。 多用于鸡的繁育
anim.husb.
recurrent selection
循环选择:
3 phrases
in 3 subjects
Aviation
1
Genetics
1
Technology
1
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