鸟类

Bird pest control to make rules and regulations, the accounting work of a more institutionalized and standardized, in order to provide a reliable guarantee of safe production.

这种和鸟类拼体力、比耐力的方法，使在机场停落的鸟类数量得到一定减少。

After many years of bird pest control work, we realized that only the airport and the surrounding ecological environment for the conduct of governance, to cut off the food chain, birds, bird habitat destruction, will it be possible to allow the "Big Bird" and the blue bird-sharing days.

经过多年的鸟害防治工作，大家意识到，只有对机场和周边生态环境进行治理，切断鸟类食物链，破坏鸟类栖息环境，才有可能让&大鸟&和小鸟共享蓝天。

Based on different birds, the habits, the activities of the law, as well as the airport to attract birds the characteristics of environmental factors, the airport identified the active and passive anti-bird bird rule of complementarity between the work of thinking, different ways to take greater efforts to combat bird pest.

根据不同鸟类、习性、活动规律以及机场吸引鸟类的环境因素的特点，机场确定了主动防鸟和被动治鸟之间相辅相成的工作思路，采取不同方法加大鸟害防治力度。

Field survey on characters of bird distribution and plant landscape of twenty-five samples picked from five parks in Xihu Scenery Area is found that bird distribution have close relation to plant selection and planting design.

本研究对杭州西湖风景名胜区5个公园25个样点鸟类分布特点和园林植物景观特点进行实地调查，发现样点内鸟类分布与园林植物材料选择及其设计特点密切相关。

So we make the linear regression multianalysis between eigenvalues of bird distribution and plant elements, the results show that bird distribution has remarkably linear relation to average height of top tree, arboreal cover, shrub cover, diversity of horizontal and surrounding habitats.

因此运用植物群落学、数理统计分析方法，对可能影响鸟类分布特征值的植物景观因子及其它因子，进行多元线性回归分析，结果表明园林空间鸟类分布与乔木上层平均高度、乔木层盖度、灌木层盖度、水平生境多样性和周围生境复杂程度有显著线性关系。

Bird song is quite complicated and is important to its life history.

中文摘要：鸟类鸣声复杂，在鸟类的生活史中具有重要意义。

She found, as she had hypothesised, that co-operatively breeding birds routinely have stronger immune responses to PHA than closely related species that do not breed co-operatively.

她发现，正如她所设想的一样，有合作哺育行为的鸟类通常会有比无此行为的相近物种的其他鸟类更强的免疫反映。

The cladogram proposed in the present paper also suggests that the maniraptoran Troodontidae and Oviraptoridae should have the branched feathers, and that feathers evolve and initially diversify in terrestrial theropod dinosaurs before the origin of birds and their flight.

本文给出的奔龙类系统关系图还显示：伤齿龙类和窃蛋龙类也应该发育了具有羽干及羽片的羽毛结构，而且羽毛已不再是鸟类所特有的特征，它早在鸟类及其飞行产生之前就已经存在并且有相当程度的分化。

There are birds that a very personable, like cockatiels and lovebirds, birds that talk, like parrots and mynah birds, those that sing, like canaries and those that are fun to watch, like finches.

有鸟类非常完美，就像cockatiels和鸟，鸟说话，像鹦鹉和八哥儿鸟类，那些唱歌，像金丝雀，和那些有趣的观看，如雀。

Wide expanses of turf grass are sterile habitats attracting less desireable "generalist" species, such as feral pigeons, starlings, cowbirds, and grackles, all of which compete with our native songbirds for food and nesting spots.

大面积的草皮是贫瘠而缺乏生产力的。只能吸引一些&俗鸟&，比如鸽子，八哥，白头鹎啥的。这些优势种的鸟类占据你的庭院，会阻碍美丽的小鸟到来。（呵呵这个作者搞鸟类歧视，我不大赞成，八哥啥的也挺好的——viccent

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐