... 推计学;测计学 stochastics;inductive statistics 原种;(由共同祖先传下的系统,保存以供繁殖的系统) stock 原种繁殖 stock breeding ...
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modern stock breeding 现代畜牧业
breeding stock 种畜 ; [畜牧] 良种畜 ; 存栏量 ; 良种家畜
stock breeding pollution 畜牧养殖场污染
Root stock breeding for grafting 砧木品种选育
growing grass and stock breeding 种草养畜
showing of breeding stock 种畜评比会场
agricultural and stock-breeding institute 农业和畜牧业研究所
fruit-farming-grass-stock breeding complex system 果农草牧复合系统
international advanced techniques of stock-breeding 国际育种先进技术
But the foraging communities of the cultures in the region of the Don and Dnieper rivers took up stock breeding and began to exploit the neighboring steppes.
但是,顿河和第聂伯河流域的游牧部落开始从事家畜饲养,并开始开发邻近的大草原。
Fish culture has the same objective as agriculture and stock breeding, that is, to increase production by all means and improve its quality.
养鱼业的目标同种植业、畜牧业一样,是尽可能地增加食品的生产,提高食品的质量。
Various approaches have been used to improve the performance of adapted indigenous stock, including cross-breeding and upgrading through back-crossing with improved breeds, and within-line selection.
已有多种方法被用于提高地方良种的性能,包括杂交育种,以及通过与良种的回交和品系内选育进行的品种改良。
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