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A game played on a four - walled handball court by two or four players with short - handled rackets and a hollow rubber ball2?

网拍墙球在四面有墙的手球场内由两名或四名选手玩的一种游戏,使用一种短柄球拍和一个直径2加?

A game played on a four-walled handball court by two or four players with short-handled rackets and a hollow rubber ball2 inches(5.7 centimeters) in diameter.

网拍墙球在四面有墙的手球场内由两名或四名选手玩的一种游戏,使用一种短柄球拍和一个直径2加?寸(5.7厘米)的空心橡皮球

As the dominant population of picoplankton in the Changjiang estuary and its adjacent sea, Prochlorococcus spp may pay a key role in the biogeochemical processes of DOM cycle.

而作为长江口和邻近海域种微微型浮游植物的优势种,聚球藻对该海域中含氨基酸的DOM的地球生物化学循环过程起了主导作用。

Two intestinal parasite species were discovered,Coccidia,Capillaria and the infection rate were 18.08% and 3.64%,respectively.

对62种鸟类共110份粪便样品进行调查,查出2种寄生虫,寄生虫总感染率为20%,球虫和毛细线虫的感染率分别为18.08%和3.64%。

This thesis contributes to geometry compression in the following aspects: Proposes a method of progressive spherical mesh parameterization based on local parameterization by directly projecting the deleted vertices to its neighborhood. Based on spherical mesh paramterization, an adaptive subdivision remeshing method by progressivly redistributing of sampling points is proposed, by this means, the main geometry information of the original mesh can be captured with only a small amount of samples, it can also be used in mesh simplification. By regarding attributes binded on mesh vertices as geometry signals and transferring them onto a uint sphere by means of spherical mesh parameterization, meshes with different attributes are compressed with spherical wavelet successfully with high compression rate. As a kind of lossy geometry compression technique, two mesh simplification algorthimes are also presented in this thesis.

归纳起来,本文的主要贡献有:提出了以直接投影局部参数化方法为基础的网格累进球面参数化方法;在网格球面参数化方法的基础之上,提出了一种基于累进优化布点方案的网格细分采样方法,该方法可以用很少的采样点就可以捕获到网格的主要特征,因此我们也将其用于后面的网格简化工作当中;通过将网格顶点上定义的各种属性看成几何信号,并以网格球面参数化为手段将几何信号迁移到单位球面上,从而成功地实现了用球面小波对各种几何信号的压缩;作为一种有损压缩方法,本文还提出了基于统一距离的网格简化算法和基于重采样的网格简化算法。

Other popular methods of preventing punch rotation are by means of the spring loaded ball as shown in Fig. 22.15, and the use of a dowel slot of the size of 3 mm in the head of the punch as shown in.

另外一种流行的方法是通过阻止打旋转球的弹簧负载。22.15如图,并使用一种定位槽的大小约3毫米的头部打如图。

Objective To compare the efficiency of constructing three truncated Echinococcus multilocularis18 gene expression vector using two clone methods.

目的比较3种截短的泡球蚴Em18基因聚合酶链反应扩增产物经TA克隆和直接酶切2种方法,在原核表达质粒构建中的运用。

The general equation of heat transfer in the stationary state is solved for four special forms of bodies, namely, plane, circular cylinder, sphere, and prolate spheroid.

接着详细研究了在稳定的情形下普遍传热方程在四种特殊形状的物体中的解,这四种特殊形状是,平面、圆柱体、球体、和长椭球。

Mammals have two otolithic organs, the utricle and the saccule. The macula lagena is another otolithic organ in the inner ear of non-mammals, and the lagena of more advaced birds develops better than that of lower animals.

哺乳动物只含有球囊和椭圆囊两种耳石器官,而非哺乳动物中还存在另外一种耳石器官——瓶状囊。

Shinty is a fine free game, and the Scottish bag pipes play a picturesque part in the game, marching their teams on to the field of play and hailing their victories with piercing blasts of triumph.

简化曲滚球是一种不错的游戏,在比赛时,风笛扮演着一种别具一格的角色,它为整整齐齐走向赛场的球队伴奏,并用响亮的笛声来欢呼他们的胜利。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力