查询词典 time space

If two nondiffracting beams with small difference of convergence angle and common axis exist at same time, they will interference with each other to form a light field structure that varies periodically along the propagation direction. It is a new kind of space distribution of light beam.

如果两束汇聚角略有不同的同轴无衍射光同时存在，则它们相互之间叠加干涉后产生一种纵向呈周期变化的光场结构，这是一种新的光束空间分布，这种光束在横向仍是一种同心环光斑，可用于精密对准。

In order to get the numerical solution, the paper devises a three hierarchic implicit scheme which eliminates the strict restriction of explicit scheme, thus, it can be used in more areas. By using the energy estimation method, the convergence and stability of the difference scheme are proved and the scheme is second order convergence for time and space.

对求解方程构造了一个三层隐式差分格式，消除了显格式的稳定性对计算步长的严格限制，使之适用范围更广，并用能量估计的方法严格证明了差分格式的收敛性与稳定性，该格式对于时间和空间均具有二阶收敛性。

So the convergence rates of space convergence clubs generally are beneath the convergence rates of time convergence clubs.

在同一时间区域组中进行的横截面回归、面板数据分析及单位根检验表明，3个时间区域组内均存在截面型及随机型时间俱乐部趋同，而且，这一结论是相当稳健的。

An expression of space-time correlation function of scattered fields is established by this method.

借助于此法，本文建立了散射场的空间-时间相关函数的表示式。

Let it be granted that pure sets are like the cosine function: located nowhere in space and nowhere in particular in time.

但这原则上能够反对那些不纯粹的集合存在在时空中和其成员存在在时空中吗？

Cosmology:The study of the physical universe considered as a totality of phenomena in time and space.

宇宙学：把有形的宇宙当做时空中的各种现象的总和来研究的科学。

Cosmology is the branch of metaphysics that deals with the world as the totality of all phenomena in space and time.

宇宙学是形而上学的分支，处理世界上的全部所有现象在空间和时间。

The space and cosmos can't expand in all time.

空间和宇宙不存在"膨胀"的情形。

When the little sticks begin flying two hours after the "cotton-wool" fog has lifted (that time when to let go the bottom would have meant being "absolutely in the air--in space"), Conrad offers us not confused seeing, but a "freshness of sensory perception" that William Barrett in describing Hemingway's story "Big Two-Hearted River" has called the "morning of the world."

当小棍棒开始飞行两小时后，"棉花"雾取消了（当时放过底部将意味着被"绝对在空中-太空"），康拉德提供我们不要混淆看到，而是一个"新鲜的感官知觉"威廉巴雷特在描述海明威的故事，"大双心河"，已被称为"世界的清晨"。

And the excavation of tunnels and underground engineering which continuously changes in time and space is a dynamic process. Therefore, research on the structural stability of country rock and support is meaningful and of practical significance to highway tunnel excavation.

隧道和地下工程的开挖是一个在时间和空间上不断变化的动态过程，因此对围岩与支护结构稳定性问题的研究具有一定的理论及实际意义。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。