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Drosera burmannii is a small, compact sundew normally spanning only 2 cm (0.79 in). It is one of the fastest trapping sundews as well, and its leaves can curl around an insect in only a few seconds, compared to the minutes or hours it takes other sundews to surround their prey.

宽叶毛是一个小小的,紧密的毛毡苔,全长通常只有2cm(0.79英尺),是具有最快的陷阱的毛毡苔之一,它的叶片可以在几秒内把昆虫卷起来,相较於其他毛毡苔,需要数分钟甚至数小时才能办到。

A summary of three commonly used kinds of tidegenerating potential development has been made. Different from the theoretical model of the effect of solid earth tide on station displacements recommended by the IERS1996 and IERS2000, a spectrum method is developed, independent of almanac, at the submillimeter level using precise development of TGP.

测站位移的潮汐效应是通过潮汐参数Love数hnm和Shida数lnm来表征的,而且测站的潮汐位移几乎是由二阶引潮力位引起,三阶潮汐效应很小,在毫米精度上更高阶的潮汐影响完全可以忽略[1]。

Laboratory experiments were carried out to study the survival and development of the Harmonia axyridis feeding on Chaito phorus popleti on high insect-resisitance hybrid poplar 741(Pb29) and medium insect-resisitance hybrid poplar 741(Pbl7).The API 741 poplar was used as control.The mortality and development during immature period,adult,baby mass.eclosion and sex ratio of H. axyridis were measured.The results showed that:to contrast The API 741, Chaito phorus popleti on Pbl7 and Pb29 has no significantly impacts on eclosion,pupation, ecdysis,mortality of immature period and pupa stage;Although every development stage of ladybeetles were not affected to ,the pupal duration of ladybeetles was lowered than the control;The body mass,eclosion and sex ratio have no significant difference.

通过利用节肢动物群落及各个亚群落的物种丰富度、个体数、均匀度和优势集中性对多样性指数进行通径分析,表明了高抗Pb29和CK节肢动物群落及各个亚群落多样性指数与均匀度和优势集中性的相关系数最高,与其物种个体数关系最为不密切:对各组分进行通径分析均表明的多样性提高是建立在降低优势集中性和增加均匀度指数的基础上的,而且以优势集中性的直接作用效果较为显著。

On the electronegative elements, bonding electron number and bonded hydrogen atomic number, new molecular topological index is developed to do research on creaturely activity for alcohol, aether, ketone and ester in this paper.

基于元素的Pauling电负性,原子成σ键的电子数,原子直接键连的成σ键的氢原子数目和原子在形成离域π键时所提供的P电子数,定义了一种原子点价公式,构建了分子连接性指数。

Using algebraic methods which include extended Tanh-method,some new solitary solutions to the DBM and Log-DBM equation,such as singular solitary solutions,double singular peakon solitary wave solutions,double solitary wave solution with peakon and singular periodic solitary wave solutions are obtained..With the aid of an auxilitary function combined with the elliptic integral of the first kind,periodic solitary solution,singular and periodic singular solitary solutions can be obtained.

第三章利用扩展的Jacobi椭圆函数展开法研究了方程,并给出ZK-MEW方程的Jacobi椭圆函数解,特别的,当模数m→0和m→1时,其中一部分解退化为三角函数解和孤立波解;其次使用sn-cn拟设法,研究了K(k,s,1)方程,得到了k=s=3时的新的精确解,并在模数m→0和m→1时得到了丰富的三角函数和孤立波解。

The elliptic type governing equations, subject to free boundary conditions, have been solved to sutdy the velocity, temperature, and pressure distributions throughout, as well as local Nusselt numbers from 10/sup 2/ to 10/sup 6/ are presented for both symmetric and asymmetric heating cases, and the influence of wall temperature difference ratio, r'/sub T/ on the flow pattern is also considered.

由求解椭圆型统制方程式及利用自由边界处理方法,来计算整个流场的速度,温度和压力分布,以及在板面上之局部纳瑟数。葛拉修数的计算范围为102-106,且包括对称及不对称加热二种情形,尤其是二板温差比。gamma。/sub T/对流场的影响方面。

Fourthly, the resonance structure disappears in the energy dependence of integral cross-section due to the summation of partial waves.

在相同入射能的情况下,总散射截面随转动量子数j的增大而显著增大,随量子数m的增加而减小。

So three different method, in which, under the control of the energy norm error, the orders of the shape functions in the whole region, in some elements, and on some generalized nodes are increased respectively, are adopted to implement the p-version adaptive hierarchical Block Element Method.

文中采用整体升阶、单元升阶和广义结点升阶三种方法,在能量范数误差的控制下分别升高所有单元、部分单元和部分广义结点的形函数阶数,从而实现了岩体的p型自适应阶谱块体单元法。

Exophthalmos does not necessarily occur at the same time as the thyroid gland malfunction; it may occur months or years afterwards, or occasionally it may even precede it.

眼球突出,并不一定发生在同一时间,作为甲状腺故障;它可能会出现数月或数年之后,或偶尔,甚至可能先于它。

The characteristic and difference of flow in porous media between the pseudo-plastic fluids and the expansile fluids was described in detail. The experimental pressure drop measurements were made in a packed bed under a variety of conditions, and the variation of the friction factor with the Reynolds number was obtained. Corresponding to the flow resistance in a nonporous channel, the flow resistance in porous media can be divided into Darcy resistance and Forchheimer resistance as well. The experiment data was divided into Darcy regime, transitional regime and Forchheimer regime in accordance with the Reynolds number.

实验测定了不同浓度聚丙烯酰胺溶液在五组填充多孔介质中流动的压降-流量关系,绘出了阻力因子随Reynolds数变化的关系曲线;按照将流动阻力分为层流粘性阻力和惯性阻力的观点,将多孔介质流动阻力分为Darcy阻力和Forchheimer流动阻力;参考有关文献,将实验区域按Reynolds数范围分为Darcy流动、过渡流动和Forchheimer流动。

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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

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。