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A species of moth and two kinds of beetles were introduced to the plant in many places of the world to feed off the water hyacinths.

世界上有很多地方都引进一种和两种甲虫来吃水浮莲。

It has the following characteristic traits:The diapause eggs are white in color in the hiberating year and become fawn after hiberation; Slight intra-and inter-batch variation in gee color may exist; Larval skin is slightly translucent; And the compound eyes of the imagos are black.

性状特征:滞育卵当年白色,越年后呈浅黄褐色;区内及区间卵色略有变异,幼虫皮肤低度透明,成虫复眼黑色。

Thefemale mated 1~3 times,while most of the males did only one time during their lifespans.

4雌腺体中性信息素含量在1:00时最高,而性信息素释放高峰在2:30。

Only at the concentration of 0.1gml^(-1), the EAG relative potential of the mated females to C. edulis showed significantly higher, compared with the extracts of maizes.

但在0.1gml^(-1)浓度时,交配雌对蕉藕叶片粗提物的反应相对值显著高于供试玉米品种。

These include oysters, clams, mussels and whelks .

这些海产包括牡蛎,文蛤,贻贝和螺。

Any of several creeping marine gastropods with a spirally coiled shell: whelks; tritons; moonshells; neritids.

几种爬行的海生腹足动物,有螺旋盘卷的壳;螺;法螺;海月贝;蜒螺。

To obtain DNA noninvasively from the silkworms Bombyx mori and Philosamia Cynthia ricini, we collected the sloughs of fifth instar and the wings of moth, and then extracted DNA by SDS and the DNA extraction kit of animal tissue and purified them.

对家蚕和蓖麻蚕的蚕蜕和翅分别采用SDS裂解法和动物组织基因组试剂盒提取法提取DNA ,并与常规方法以蚕蛹提取的DNA一起进行RAPD扩增图谱比较、分析,结果表明用非损伤性方法提取的DNA的RAPD图谱和用常规方法提取的DNA的RAPD图谱基本一

August Moon Festival is a Chinese traditional festival, it also became one of the major festivals in China. People see the full moon as a symbol of reunion, and August 15 as a date for family reunion. When I was in China, our family gathered to have mooncakes and enjoy the moon. Every August Moon Festival, the moon is the roundest. On the moon, there are rabbits and Chang Er. In my heart, the moon that day is the brightest.

中秋节是我国的传统佳节,也是我国成为一年之中的重大的节日,人们把月圆当作团圆的象征,把八月十五作为亲人团聚的日子,我在中国过中秋节,吃月饼一家人团聚看月亮每年中秋节晚上月亮最圆的一天,月亮上面有兔子嫦桂花树在我心目中月亮最亮的这一天晚上。

The sloth pays such little attention to its personal hygiene t hat green algae grow on its coarse hair and communities of a paras itic moth live in the depths of its coat producing caterpillars wh ich graze on its mouldy hair.

树獭即不讲究卫生,以至于它粗糙的毛发上生出绿苔,成群的寄生生长在它的皮毛深处,变成毛毛虫,并以它的脏毛为食。

The results show that shade of cocoon and reeling silk are all even and bright. Color depth in the cocoon is directly proportional to the concentration of additional pigment. With respect to cocoon color, no difference occurs to the male or female when fed with the same concentrated pigment. Within the range of certain concentrations, the red pigment has little effect on the quality of cocoon and cocoon filament. The red pigment has a fast bond with protein. Color of sericin, fibroin, pupa, moth and egg shell are all red.

结果表明:所营蚕茧及所缫蚕丝色泽均匀、鲜艳;蚕茧的色彩深度与添加的色素浓度呈正比;添食同种浓度的色素所得的蚕茧色彩在雌雄之间无差异;经调查,在一定的浓度范围内红色色素对茧丝质无影响;红色色素与蛋白结合牢固,无论丝胶、丝素还是蛹体、体或卵壳均呈红色。

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推荐网络例句

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。

The shamrock is the symbol of Ireland and of St.

三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。