种球

For the diffusion coefficients of electrolytes in aqueous solution by the mean spherical approximation was modified in two ways.

采用两种方法对Barnard等的用平均球近似理论计算电解质在水溶液中的扩散系数的方法进行了改进。

Plant Types Used When the Feed Product is a Liquid 2.1 High Body and Wide Body Spray Dryers The fountain atomizer in a high body dryer is used for production of spherical monogranulates with a mean particle size of 150 to 300 mm, whereas a centrifugal atomizer in a wide body dryer is used to manufacture particles of 30 to 100 mm.

当喂植物种类产品是一种液体身体和广泛的身体2.1高喷雾干燥机在一个很高的喷泉雾化身体干燥机用于生产球monogranulates平均粒径 150 - 300毫米，而一个离心式雾化器在广泛的身体烘干机是用来制造颗粒的30到100毫米。

This paper proposes a method based on quantum measurement for spherical shell clustering.

提出一种基于量子测量的球壳聚类方法。

Starting from the lighter Mg atom, the both cases in which the autoionizing states are excited from the spherically symmetric and non-spherically symmetric Rydberg targets were investigated with different physical models.

从较轻的Mg原子入手，分别针对球对称靶的和轴对称靶这两种情况，采取不同的物理模型对其自电离弹射电子的能量分布进行了深入的理论研究。

In this paper, the principle and construction of a automatic lathe which is used to turn ball of oil sprayer are introduced.

文章介绍了一种车削喷油器球头自动上下料机构的原理及结构。

The Nothoperanema Ching is a small genus of Dryopteriaceae s.l.,it have 5 species now,the squama,the shape and texture of leaves,and many extermal forms are close to the Peranemaceae,the two may have close relationships.

肉刺蕨属NothoperanemaChing是鳞毛蕨科的一个小属，现有5种，该属在鳞片、叶形、叶的质地等外部形态方面与球盖蕨科很相似，二者之间似乎存在密切的亲缘关系。

TWT is capable of and has the facilities to design and manufacture butterly valves,gate valves,check valves,hydraulic auto control valves ,shut-off valves, ball valves,exhaust valves,square gate valves,round gate valves,stainer,and pipeline accessories ranging from DN15-DN3000 at pressure rating from 0.05 to 6.4Mpa .

我公司具有设计、制造压力0.05-6.4Mpa，通径DN15-DN3000的各类蝶阀、闸阀、止回阀、水力自动控制阀、截止阀、球阀、排气阀、方闸、圆闸、过滤器、管道附件等产品能力，产品品种规格达2000余种。

But it is stasis that does an Ecosphere in.

不过，一个生态球的真正状态，还是一种沉静。

According to different purposes, NH Kneader can be made of vacuum, pressure, atmospheric pressure three; temperature tune the form of the use of jacket, steam, conducting oil heating, water cooling, etc.; material means there is hydraulic, double-cylinder for dumping, Ball material, such as screw extruder.

根据不同的使用目的，NH捏合机可制成真空、压力、常压三种；温调形式采用夹套，蒸汽、导热油加热，水冷却等方法；出料方式有液压、翻缸倾倒、球阀出料、螺杆挤压等。

A grating function and a groove function are introduced to determine the structure of a concave grating. Basic ideas for the design of a flat-field concave grating with three stigmatic points are proposed. As a proof of the usefulness of these design approaches, image conditions of the grating with three stigmatic points are developed which concise with other published results and they are more general than those obtained from holographic gratings.

采用与分析三维光栅相类似的级数展开法给出了二维集成凹面光栅的球差、彗差的计算方法，计算中用光栅函数和槽面函数来描述具有任意形状和任意变化周期的光栅，提出了一种具有三个无像差点的平面场型凹面光栅的设计方法，利用该方法推导了三点无像差光栅的成像条件，与文献中用其它方法获得的结果相一致，该结果与全息光栅的成像条件相比，更具一般性。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。