A new approach is presented to efficiently solve the three dimensional space time reactor dynamics equation which overcomes the disadvantages of current methods.
为快速求解反应堆三维时空动力学方程，克服已有方法的局限，提出了一种新的求解方法。
Space is considered to be three-dimensional and time is thought of as the fourth dimension.
空间被认为是三维的，而时间则被看作第四维。
Three dimensional space is defined for the time, controller and Angle displacement. The method and scheme of optimization for subdivision control code are presented.
定义了时间、控制量及角位移三维空间，介绍了离散控制量的优化方法，并提出了离散量控制细分优化方案。
The four dimensional space, means that the mankind the substance space( namely three dimensional space ) of the concrete activity, plus one more consciousness measurement ( time factor).
四维空间，是指在人类具体活动的实质空间（即三维空间）之上，再加上一个瞬间取向的知觉量度（即时间因素）。
Around 10 million years ago, these three civilizations were busy creating technologies based on advanced forms of space and inter dimensional time travel.
距今大概1千万年以前，这三个文明忙于创造空间高等生命和他们的次元时间旅行。
The temperature of a three dimensional nonstatic black hole is given. The compensate effect under time scale transformation in the space time is studied.
给出了三维黑洞温度，研究了该时空时间尺度变换的补偿效应。
It transforms the double-differential carrier observation equation using null space transformation so that it need not to resolve real-time three-dimensional position parameters.
对单个历元的双差载波相位观测方程进行零空间变换，避免了实时变化的三维位置参数求解；
Transitions occur only when the three-dimensional factors of prerequisites, requirements and motive force gather in a time space, and can be completed only when the motive force is continuous.
跃迁只有在前提、条件和动力三维因素齐备的时空中才会发生，并在动力的持续推动下才能实现。
Improve tourism marketing planning, achieve a three-dimensional development of the tourism market by making time, space as coordinates.
三是搞好旅游营销规划，以时间、空间为坐标，实现旅游市场的立体开发。
The three-dimensional frame of reference is the realm of definitions, and that is why it is apparently constituted of time and space.
三度空间的思想架构是一个靠定义而存在的世界，因此，它需要时间和空间。
Objective: To evaluate the value of real-time three-dimensional echocardiography (RT3DE) in cardiac space-occupying lesions.
前言：目的：探讨实时三维超声心动图(RT3DE)在心脏占位性病变中的临床应用价值。
For now, people only know about the one-dimensional time, two-dimensional, three-dimensional space, and Einstein, the reference to "four-dimensional space-time" concept.
就目前而言，人们只了解一维时间、二维平面、三维空间以及爱因斯坦提及的“四维时空”概念。
For now, people only know about the one-dimensional time, two-dimensional, three-dimensional space, and Einstein, the reference to "four-dimensional space-time" concept.
就目前而言，人们只了解一维时间、二维平面、三维空间以及爱因斯坦提及的“四维时空”概念。
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