查询词典 spherical bessel function

The 1s electron cloud in hydrogen atom has the largest probability density distribution around a spherical shell with Bohr radius a 0. The author thinks the probability density distribution and electron cloud belong in fact,to statistic regularity, and imply a macro-time scale is used, therefore in hydrogen molecule the product of energy and time is far larger than Planck Constant.

氢原子中 1s电子的电子云呈球形，电子的最大几率密度分布出现在玻尔半径a0 的球壳内，认为几率密度分布及电子云属统计规律，意味着已经使用了宏观时标，这样就使氢分子体系中能量和时间的作用量远大于普郎克常数；根据电子云的交叠，用经典力学计算了基态氢分子的结构常数，获得键长、键能及力常数的表达式分别为Re=2a0 ，De=ze/4 2a0 ，k=ze/2 2a30 ，采用原子单位 a 。u 。

The results showed that the calcined bone ash obtained at 1200℃ had clear outline, spherical and mode-ratesize particles. These characteristics were benificial to improve the slurry fludity, broaden the sintering temperature range and increased the whiteness of bone china bulk. It is concluded that the moderate calcining temperature range of bone china bulk is 1200-1300℃.

实验结果表明，在1200℃下对骨灰进行煅烧，可获得轮廓清晰、周球形和颗粒尺寸适中的煅烧骨灰，有利于提高骨质瓷坯体浆料的流动性，扩大坯体烧结温度范围，并且能提高坯体的白度。

One is a spherical shape of 12 boron atoms.

一种是由12个硼原子组成的球形，另一种是由一对硼原子组成的哑铃形结构。

Terrain correction is needed when we do research on the internal structure of the Earth, the Lunar, and Mars by use of satellite gravity measurements, then calculate global Bouguer gravity anomalies. It is effective to carry out terrain correction in spherical coordinates.

利用卫星重力测量资料研究地球、月球与火星等星体的内部构造时，需要进行重力地形校正，计算全球布格重力异常，而在球坐标中实现地形校正计算是一种有效的途径。

Dier Liu or the chest around the breast in the third to seventh ribs, the shape is spherical or conical base is oval, counting from the chest wall, breast high 7-9 Li Mi.

乳房位于胸前左右第二六或第三至第七根肋骨间，形状是球形或圆锥形，基底是椭圆形，从胸壁算起，乳房高7—9厘米。

The model of adiabatic spherical to columnar hydrogen bubble growth in large leak sodium water reaction as well as the model of secondary loop pressure propagation with the one dimensional characteristic method are established under one double ended guillotine tube break in the steam generator of liquid metal cooled fast breeder reactor.

研究建立了钠冷快堆蒸汽发生器在单管束发生双端断裂情况下钠水反应中气泡从球形到柱状的变温绝热生长模型，及采用一维特征线方法建立的压力波在快堆二回路中的传播模型。模型中考虑了爆破膜、管壁弹性变形和气蚀的影响。

A solid spherical or pointed projectile, such as one shot from a cannon.

炮弹：一固体球状物或尖形射弹，如从大炮中射出的炮弹

Based on the theory of graph representation, the canonical graph representation of the continous 3R oblique non-spherical wrist is setup, and links of the wrist are divided into carriers and carried links.

中空结构有利于保护从中穿过的油漆管、溶剂管、成型空气管和测速光纤等，而且在手腕转动过程中不会引起内部管路打结或折断。

Based on the Laser Doppler technology, Information technology, Image Recognition and Process tenology, the laser image characteritics of ultra-fine and non-spherical particles are studied. The laser image recognition method based on neural network theory are obtained. The associated hardware and computer software for analysis of the shape characteristics are developed. The shape characteristics of typical particles such as fire smoke particle and carborundum are studied by using such method. The results of this project are useful to develop the new reliable, accurate and rapid experimental diagnoses technology.

本项目综合应用激光多普勒技术、信息技术和计算机图像识别处理技术，研究了非球形超细微粒的激光影像形成规律，建立了基于神经网络理论的粒子形状特性测量方法并发展了相应的硬件系统及其计算分析软件，并利用该系统研究了火灾烟雾颗粒、金刚砂等典型非球形超细微粒的形状特性，已初步形成了可靠、准确、快捷的新型实验诊断方法，为进一步发展实用的非接触诊断技术提供条件。

Cartesian, spherical and cylindrical coordinates can be transformed.

笛卡儿，球和圆柱的同等者能够被转变。

Tom: You are right, he worked hard all the time.

你是对的。他一直都是努力工作。

Take shortcomings,failures,and mockings of others as commonplace and a drive to complete oneself,hold your own opinion over the evalution and disscution divested from others,afterwards sink into the state of eliminate mistakes if any or encourge oneself being not being influenced by the sayinngs of others or having no ideas to do.

把缺点、失败及别人的耻笑等看成是一种常事，当成完善自己的动力，对别人的评价和议论自己心中有主见，做到&有则改之，无则加勉&，不为人言所左右或无所适从。