所有这些类型胡萝卜都是经过专门繁殖。
科学家们说,如果这两种鸟类已经繁殖了的话,他们将早已发现遗传学上的“中间类型”——即来自这两个物种的基因的麻雀。
If the birds had been breeding, the scientists say that they would have found genetic "intermediates" - birds with genes from both species.
测定分析鱼类生殖力、产卵期、繁殖群体的年龄结构及产卵类型。
The spawning times, absolute fecundities, age structures of breeding population, and spawning types of fish were also studied.
过敏性肺炎的一种类型农民肺,由于农民吸入耐热的放线菌,它由发霉的干草中繁殖生长。
One form of hypersensitivity pneumonitis is known as farmer's lung because the farmer inhales thermophilic actinomycetes in moldy hay that set off the reaction.
由于长期的实生繁殖,它有许多变异类型。
Because of the long self propagation by seeds, they have variant types.
通过平皿计数法研究了不同类型木质素磺酸盐及其组分对循环冷却水中细菌繁殖速度的影响。
In this paper, the effect of lignosulfonates on bacteria reproduction rate in recirculated cooling (water) has been studied by plate counting method.
“营养繁殖体”是无性繁殖树木的任何类型。
A "vegetative propagule" is any type of vegetatively propagated tree.
研究表明,该病原体具有完整的细胞包膜,内部具有低电子密度拟核,在胞浆中以两种类型存在-繁殖型和静止型;
The results showed that the RLO with an integrated cell membrane and a nucleoid of low electronic density appeared in the cytoplasm .
瓯江光唇鱼的产卵类型属于连续产卵类型,在同一繁殖期内可以反复产卵数次。
The results of this paper indicated that Acrossocheilus fasciatus of the Oujiang River belonged to consecutive spawning type. It can spawn many times during reproduction season.
瓯江光唇鱼的产卵类型属于连续产卵类型,在同一繁殖期内可以反复产卵数次。
The results of this paper indicated that Acrossocheilus fasciatus of the Oujiang River belonged to consecutive spawning type. It can spawn many times during reproduction season.
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