查询词典 spherical bessel function

It resolves the backward of long delay in fast-changed acceleration of target tracking in Cartesian coordinates or spherical coordinates.

该方法克服了在直角坐标系和球坐标系上估计目标快变加速度机动延迟大的缺陷，能实时、精确地估计出目标加速度、速度和位置。

This paper reports the crystal structure, characteristics of cathodoluminescence and photoluminescence of the Y2O3: Eu phosphor with the spherical and superfine particle s(120-250 nm)produced by urea-sol process for the first time.

这种超细颗粒在254nm激发时的发光强度比商用的传统微米样品低。

The main component of the celestial globe is a hollow bronze globe, with crisscross grids on the spherical surface, which are used to delineate the exact position of celestial bodies.

整个铜球可以绕一根金属轴转动，转动一周代表一个昼夜，球面与金属轴相交于两点：北天极和南天极。两个极点的指尖，固定在一个南北正立着的大圆环上，大圆环垂直地嵌入水平大圈的两个缺口内，下面四根雕有龙头的立柱支撑着水平大圈，托着整个天体仪。

A novel preparation technology of spherical cellulose was studied in this paper.

研究了一种简单、周期短的制备球形纤维素的工艺。

Corrected for both chromatic and spherical aberration, as a lens.

复消色差的矫正色相差和球面像差的，如镜头

Core adjusting rolling bearing type 22300 has 2rows of symmetry rolling spherical and copper alloy suppting frame,there is no fixed circlip in inner circle,the roller is the longer type,it has the abillity to support more load,the circlip will lead while moving,it has the better performance of core adjusting,also it can compensate the tolerance of coaxiai degree.

调心滚子轴承22300CA型具有两列对称球面滚子和铜合金实体保持架，内圈无固定挡边，滚子加长，承载能力大，活动中挡圈由内圈引导，调心性能良好，能补尝同轴度误差。

Saw him this lecture, that we finally know the laws of spherical trigonometry sine, sina / sinA equal to what the final (the sine law of this plane is equal to the circumcircle diameter).

看了他这个讲义，才终于知道球面三角的正弦定律中，sina/sinA最终等于什么（平面的正弦定律这个等于外接圆直径）。

In addressing the more elementary spherical constructions, the background pertaining to classical groups includes basic results about quadratic forms, alternating forms, and hermitian forms on vector spaces, plus a description of parabolic subgroups as stabilizers of flags of subspaces.

In解决更多的中球形建筑研究所需要的群体，经典的背景有关团体，包括基本的结果对二次形式，交流形式以及向量空间埃尔米特形式，再加上作为稳定剂的子空间旗抛物子群的描述。

Results show that the nanometer particles are in spherical shape, the size of particles is homogenized and controllable, no agglomeration. The particle size changes with the processing condition; the maximum particle size is in the range of 80~90 nm, and the minimum particle size is in the range of 25~30 nm. The ice performance test in indoor cloud chamber shows that the nanometer silver iodide particles as catalyst for artificial weather modification have great application prospect.

结果表明：纳米碘化银粒子成球形，粒径均匀可控，无明显团聚现象，不同工艺条件下获得的碘化银粒径不同，最大粒径范围在80~90 nm，最小粒径范围在25~30 nm，因为碘化银具有类冰结构，是最佳成冰物质，故纳米碘化银粒子作为人工影响天气催化剂具有极大的应用前景。

The non-spherical lens is another shaping system that is used to collimate the beam of LD, and the theoretic performance could be perfect.

非球面柱透镜是另一类特殊结构的柱透镜，在用于半导体激光束准直时，理论上可以达到完全准直的效果。

What was it that made you want to change sider ?

是什么使你临阵倒戈？

I don't know what he wants, but let's play along with him.

我不知道他要干什么，可我