• 这三种生物从同一原种进化而来。

    The three species evolved from a single ancestor.

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  • 大个头柚子是葡萄柚的原种,象征着丰富,因为其中文发音和“有”接近。

    As for pomelos, this large ancestor of the grapefruit signifies abundance, as the Chinese word for pomelo sounds like the word for "to have."

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  • 为实现树木长期与原种一致的无性繁殖,必须了解其成熟作用和幼态保持的机理,选取幼态组织作为繁殖材料或采用人工复壮措施。

    So it is essential to study the mechanisms of maturation, juvenility retention and rejuvenation before uniform, true-to-type, long-term cloning of trees can be achieved.

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  • 报道了组培枣树大田苗与原种枣树大田苗在气孔性状上的差别。

    The difference in stomata characters between tissue-cultured jujube tree and original tree in field is reported in this paper.

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  • 为杜绝垂直传播,要定期监测从原种群到商品群的整条扩繁链。

    The chain of multiplication from elite stock to commercial pullets is regularly monitored to ensure freedom from vertically transmitted SE infection.

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  • 没有人设想我们精选的产物,是从它们的原种仅经一次变异而产生的。

    No one supposes that our choicest productions have been produced by a single variation from the aboriginal stock.

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  • 十字花科自交不亲和性的大小关系到杂交制种的纯度和原种的繁殖系数。

    The affinity of self-incompatibility in the mustard family affects the purity of hybrid seed and the propagation coefficient of stock plant.

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  • 野吐绶鸡,野火鸡:一种野生的火鸡,尤指一般北美家养火鸡的原种火鸡。

    A wild variety of Turkey, especially one from which the common domesticated North American Turkey is developed.

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  • 树木溃疡病是一类危害严重的枝干病害,病原种类多,寄主范围广,症状复杂。

    Tree canker is a kind of most serious tree trunk disease which have a various of pathogens, a wide distribution of host and complex symptoms.

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  • 欧亚大陆和北非的一种野生猪(野猪猪属) ,有深色的厚猪鬃。是家猪的原种。

    A wild pig (Sus scrofa) of Eurasia and northern Africa, having dark dense bristles. It is the ancestor of the domestic hog.

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  • 该方法既区别于单纯生产原种的“株系循环法”,也区别于选育新品种的纯系育种法。

    It is differ both from the method of "circulate line selection" for seed reproduction and from the method of "pure line breeding" for varieties development.

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  • 本研究对湖南省常德市石门县马头山羊原种场2008- 2009育种资料进行了整理分析。

    This research sorted and analysed the breeding data from the Shimen foundation seed farm in 2008-2009, Changde, Hunan.

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  • 在内蒙古乌兰察布盟后山地区武川原种基地,对各级种薯生产技术及其良繁体系进行了系统的研究。

    The systematic research on seed potatoes has been carried out in Wuchuan potato elite base of northern Daqing mountain of Ulangab League of Inner Mongolia.

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  • 利用荧光显微术观察,发现同源四倍体水稻与其二倍体原种的糊粉层细胞壁纤维素物质都存在一个“充实”的过程。

    The formation of the aleuronic layer cell wall in autotetraploid and its original diploid rice was studied by using the technique of fluorescence microscopy.

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  • 本文分析了快中子辐照育成“中铁31号”品种的高产原因,同时与原种“铁秋15号”及不同类型高产品种作了比较。

    The new rice variety "Zhongtie 31" bred by fast-neutron irradiation has been compared with its original "Tieqiu 15" and some other types of high-yield rice varieties.

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  • 本文分析了快中子辐照育成“中铁31号”品种的高产原因,同时与原种“铁秋15号”及不同类型高产品种作了比较。

    The new rice variety "Zhongtie 31" bred by fast-neutron irradiation has been compared with its original "Tieqiu 15" and some other types of high-yield rice varieties.

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