交配

Dorsalis invading to Guangzhou was about 590,which could form about 295-372 mating pairs,and there is little difference between the results calculated by Classic PERT and Monte Carlo simulation. Therefore,the importing risk really exists.

结果表明，橘小实蝇累计传入数量为590～598头，能够形成295～372对潜在交配成虫，经典PERT模型和Monte Carlo仿真的计算结果很接近，传入风险确实存在，为100%。

1 The world's strongest insect is a type of male dung beetle which needs its power to be able to mate with females in animal faeces, British and Australian scientists said Wednesday.

英国和澳大利亚科学家本周三称，全世界力量最大的昆虫是一种雄性屎壳郎，这种屎壳郎需要很大的力量才能在动物粪便中与雌性屎壳郎交配。

Dung beetle is world's strongest insect: study The world's strongest insect is a type of male dung beetle which needs its power to be able to mate with females in animal faeces, British and Australian scientists said Wednesday.

当我在街上看到简时，她只是装作没看见我。英国和澳大利亚科学家本周三称，全世界力量最大的昆虫是一种雄性屎壳郎，这种屎壳郎需要很大的力量才能在动物粪便中与雌性屎壳郎交配。

The results indicate that day 5 p.c.primitive ectoderm cells are able to participate in embryogenesis after be-ing introduced into day 4 p.c.blastocysts and result in the production of adult chimeras.

嵌合体与C_(57)BL/6 J小鼠交配后所得的结果表明，原始外胚层细胞在嵌合体内能形成有功能的配子。上述结果说明，原始外胚层细胞与内细胞团细胞、体外培养的胚胎干细胞一样，具有发育全能性。

As spring arrived in Berlin last week, astonished zoo staff observed the dowager Hippopotamus amphibus mating with bull Ede.

随著柏林在上周入春，动物园人员观察到这只河马寡妇与雄河马艾德交配，大感诧异。

The results showed that the reproductive system of female adult was constituted by a pair of ovaries, a pair of lateral oviducts, median oviduct, bursa copulatrix, spermatheca, genital chamber and ovipositor. The reproductive system of male adult was constituted by a pair of testes, a pair of vas deferens, a pair of male accessory glands, ejaculatory duct and penis.

结果表明：雌成虫的生殖系统由1对卵巢、1对输侧输卵管、中输卵管、交配囊、受精囊、生殖腔和产卵器组成；雄成虫生殖系统由睾丸、1对输精管、1对附腺、射精管和阳茎组成。

The male elephant seal fight over females for the rights to mate.

公海象们为了争夺母海象的芳心及交配权而斗。

This is because they leave their mounds en masse to mate.

这是因为他们离开自己的土墩集体交配。

The transgenic living beings have ability of breeding with close relatives, so once it is released in the environment (for example planting in the farmland), the future trouble would be enigmatical; and it would be also difficult to remedy if there is some mistakes.

由于转基因的生物一样具有繁殖及与近亲交配的能力，它一旦被释放到环境中，后患莫测，一旦出错，也难以补救。

The "stemma equimultiple random select cross method" and "random mating method" were used to propagate offspring population of Langshan chicken. For each population, the pedigree of individuals were ascended up to 5 generations. Then, their generation increment of inbreeding coefficient was caculated using the regression slope rate.

以狼山鸡为素材，利用"家系等量随机选配法"和"随机交配法"2种保种方法进行继代繁殖鸡群，每个保种群每个世代的鸡只均逐只编制往上追溯5代的系谱图，利用回归斜率分析方法计算世代增量。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。