cross-breeding

常見(jiàn)例句

But conventional cross-breeding is costly and laborious for grapes.
但是傳統(tǒng)的葡萄雜交非常費(fèi)時(shí)費(fèi)力且價(jià)格昂貴。
But what limits are there to the kind of reiterative, informatics cross-breeding underlying their generation?
但是什么局限了它們一代代信息雜交存在某種反復(fù)或重復(fù)？
The team made the discovery while hunting for genes that boost heterosis, the phenomenon by which cross-breeding two varieties of plants produces more vigorous hybrid offspring with higher yields.
研究團(tuán)隊(duì)在尋找促進(jìn)雜交優(yōu)勢(shì)的基因的時(shí)候發(fā)現(xiàn)，將兩種植物雜交出的更具優(yōu)勢(shì)的子代，其產(chǎn)量更高。

But many ranches are now cross-breeding the zebu with Aberdeen Angus and other European stock.
ECONOMIST: Brazil
As for cross-breeding, Mother Nature had done it first, cross-pollinating different wild grasses until they produced a grain that could eventually expand into modern bread.
ECONOMIST: Norman Borlaug