查询词典 sex ratio

Now, the imposex status in females of Thais clavigera and Cantharus cecillei in 17 sites was investigated to evaluate the organotin contamination along Xiamen Bay during 2006 and 2007. The four indices including incidence of imposex, relative penis size index, vas deferens sequences index and sex ratio index were used comprehensively to assess the imposex status in order to ascertain the extent of organotin bioavailability in Xiamen Bay.

调查研究了厦门海域岩相海岸带疣荔枝螺和甲虫螺的性畸变情况，通过生物学指标IOI、RPSI、VDSI及SRI综合评价其性畸变发展程度，间接指示厦门周边海域的有机锡污染程度。

Results there are 22 affected patients (10 males and 12 females with approximately equal sex ratio) and the mean age of onset was 16 years old.fifteen patients had positive family history.the major symptom experienced was itching.keratotic papules were invariably present in our patients and mixed pattern with seborrheic plus flexural involvement was the commonest phenotypic variation.all of them had acral signs; 36.36% patients had oral mucosal lesions.lesions were most frequently found on face,ears and back of ears,neck.focal acantholytic dyskeratosis with corps rounds and grains were the usual histopathological findings.

结果 22例患者中有女10例，男12例，男女比例基本相当。平均发病年龄16岁。其中15例有家族遗传史。主要的症状是瘙痒。多在皮脂溢出部位和屈侧皮肤可见油腻性角化性丘疹，且全部病例肢端受累，36.36%患者口腔有皮损。最常见部位依次为面部、耳部和耳后、颈部。局限性棘层松解性角化不良及其产生的圆体和谷粒是最常见的组织病理学改变。

The sex ratio was changed in the direction them favors femaleness.

青萍也可经种子繁殖，它具有雌雄同株的单性花。

The results showed that :(1) sex ratio of Macaca mulatta population in Neilingding Island was 1∶ 0.98 , in which infancy group was 1∶1.07 , juvenescent group was 1∶0.93 , middle age group was 1∶0.6, middle-old age group was 1∶0.57 , old age group was 1∶1.14 ;(2) age composition pattern of Macaca mulatta population in Neilingdi...

结果表明：( 1 )内伶仃岛猕猴种群雌雄性比为 1∶ 0 。98，各年龄组性比幼年组为 1∶ 1 。0 7，青年组为 1∶ 0 。93，中壮年组为 1∶ 0 。6 ，中老年组为 1∶ 0 。5 7，老年组为 1∶ 1 。1 4 ；( 2 )列出了猕猴种群年龄结构图，确定了年增长率为 6 。9%，种群数量的动态公式是 Nt=2 0 0 e0 。0 69t；( 3)预测了未来 1 0 a的猕猴种群的数量和发展，种群数量从 2 0 0 1年到 2 0 1 0年增长到 1 2 0 0头左右；( 4 )内伶仃岛猕猴种群发展的最适容纳量为 90 0～ 1 1 0 0头(平均 1 0 0 0头)。

Macaca mulatta ; sex ratio ; age composition ; population dynamic ; Neilingding Island

猕猴；性比；年龄结构；种群动态；内伶仃岛

The sex ratio of female to male was more than 2 000∶1 in passionflower, and reproducing by pathenogenesis mainly.

该螨在西番莲上雌雄比大于 2 0 0 0∶ 1 ，主要为孤雌生殖。

But she added: We think the sex ratio at birth is probably peaking now.

但是她补充道：我们认为新生儿男女比例问题已经达到了顶峰。

Population dynamics、sex ratio、developmental duration、developmental zero、effective accumulative temperature and toxicity determination of Prodenia litura were studied in this paper.

本文对斜纹夜蛾的种群消长、性比、发育历期、发育起点温度与有效积温以及毒力测定进行了研究。

In the 1990s South Korea had a sex ratio almost as skewed as China's.

在上个世纪90年代，韩国的男女比例失衡和中国一样严重。

In the 1990s South Korea had a sex ratio almost as skewed as China's.

在上世纪90年代韩国的性别失衡情况几乎与中国相同。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。