参考系

This paper has investigated the expression on rotational motion of earth's surface and Earth's deformation fields with complex vector surface spherical harmonic function, theoretical definition of the crust-fixed reference frames and the terrestrial reference system, and theoretical substantiating to the consistency between them.

徐州师范大学国土信息与测绘工程系，徐州 221116；2。中国科学院测量与地球物理研究所，武汉 430077摘要：本文研究了内核地球模型下的地球表面的旋转运动和地球形变场的复数矢量球函数表示，以及外壳固定参考架、地球参考系的理论定义和它们之间等价性的理论证明。

If you go to the doctor with strep throat he can be pretty certain that it's the result of an infection with a species of Streptococcus and can therefore prescribe an appropriate antibiotic.

他们通过分析菌种的基因组序列来比较这些菌种，然后用计算机做出系谱图，再将这些系谱图与已知的参考系谱图进行匹配。

In this paper, the bifurcation of 1/2 subharmonic resonance of thin elastic plate in noninertia system was presented.

本文研究了非惯性参考系中弹性薄板在大范围运动与变形运动相互耦合时的1/2亚谐共振分岔。

Principal axes method, was presented to figure out the rotational directions of talus and calcaneus and the angles between them.

采用最大类间方差法与交互式数学形态学方法相结合的手段从活体后足CT序列图像中分割出距骨和跟骨，以移动立方体法重建距下关节复合体的表面并以动画方式显示距骨和跟骨的结构信息，提出力矩主轴法计算距骨和跟骨相对于参考系的旋转方向及它们之间的夹角。

However, in two reference frames the experimental results of time dilation are assured and exclusive, but the time dilation results of the special relativity are relative strictly.

但是，在两个参考系中，时间膨胀实验的结果是确定的和唯一的，而狭义相对论的时间膨胀关系是相对的。

When the object motions are observed in different inertial frames, their conclusions of time dilation can be opposite; it indicates that, the experimental result of time dilation is different obviously from special relativity, and can not look upon the equivalent to the latter and testify its correctness.

从不同的参考系观察，它们的结论是可以相反的；因此，时间膨胀的实验结果与相对论是明显不同的，不应与相对论的时间膨胀效应等同起来，也不能用来证明狭义相对论的正确性。

Observing the extragalactic radio sources in both radio and optical wavebands is the important method to construct the relationship between radio and optical reference system. Since the precision of radio positions of radio sources is better than lmas, determination of optical positions of radio sources is the key step.

实现射电与光学参考系连接的一个重要手段是在两个波段观测河外射电源，由于射电源的射电定位精度已达亚毫角秒，因此河外射电源的精确光学定位是关键。

Do not forget that the far point of hyperopic eye is a virture point behind the eye ball and you cann't see anything if it placed behind the eye.

但比较近视/正视/远视的调节范围，三者之间有一个绝对不变的参考系-------正视能看清的视觉空间。

The adoption of the International Celestial Reference System and the changes of observational strategy call for the use of departure point on the moving equator independently from Earth's orbital motion. A Nonrotating Origin, proposed by Guinot, is selected.

国际天球参考系的使用、观测精度的提高和方法的改善要求采用与地球轨道运动无关的运动赤道上的起算点， Guinot提出的非旋转原点可作为这样一种选择。

The flow field of a waterjet propulsion system,which is meshed by structural and unstructural grids,was calculated numerically with the steady state multiple frame of reference method.

采用结构化网格与非结构化网格相结合的方式划分了喷水推进系统的流场区域，采用稳态多参考系方法进行了数值计算。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。