质心

The compound pendulum of alterable centroid has extremum of period which can be searched for by the golden section method and the Fibonacci method under laboratory condition.

钟摆式复摆的质心可以变化，因此具有极小周期点位置，在实验室条件下，这个极值点可以采用黄金分割法和Fibonacci法来搜索。

In the teaching of central field, we should pay attention to turning the relative motion of two - body into one dimentuonal radial motion by introducing two physical concepts of reduced mass and effective potential energy, and we should also pay attention that the area law is the geometrical description of the conservation of angular momentum in the central field.

在有心力场教学中，应着重强调指出：通过引入折合质量和有效势能这两个物理量，把二体相对运动问题转化为单体沿径向的一维运动问题；以及面积定律是质心在有心力场中角动量守恒的几何描述。

It is also pointed out that the fuzzy controller implemented through this way can approximate any continuous real function.

摘要基于对模糊集基本特性的分析，提出了一种模糊集合的距离度量方法，与传统方法不同的是它不但与模糊集的质心有关，而且与模糊集的基数有关；其次讨论了如何基于这种距离的定义来实现模糊控制，并指出基于这种方法实现的模糊控制器可以逼近任意连续函数。

It has sets of centroid information with an initial coordinate line and, if there are labels, the label ids will follow, with up to 8 label ids per line.

它包含一系列的质心信息行，这些行以坐标开始，如果有标签，标签后有索引，每行最多有8个索引。

There are mainly 3×3 window module and auto-adapted threshold module used in the article. Firstly, we carry on processing to the CCD data-in, and judgment of spot scope. Then, we utilize the centroid algorithm to process the pixels which occupied on the spot, and obtain the spot position of miss distance.

文中主要采用3×3窗口模块和自适应阈值模块，先对CCD输入数据进行处理，判断光斑的范围，然后再运用光斑的质心算法对光斑所占的像元进行运算，得出光斑位置的脱靶量，最后用VGA格式将图像显示在LCD上。

In this paper a modified centroid coincidence theorem and a motion parameter decomposition theorem are introduced,which degenerate it into a pure rotation problem with only 3 degrees of freedom.

最优运动估计本质上是6自由度的非线性问题，本文提出推广的质心重合定理和运动参数分解定理，将其简化成3自由度的纯旋转问题。

We also calculated the details of the eigenfunction.

由于周期折皱界面引起的激子质心运动量子化使得光吸收谱中出现了新的几乎等距的吸收峰。

Additional insight is gained by examining the elastic collision of equally massive particles in the center-of-mass frame of reference.

对质量相等的两质点的弹性碰撞更彻底的理解，可通过质心参照系而获得。

Its own elliptic motion around it will be almost imperceptible.

它绕着质心的椭园运动就几乎看不出来。

The mean square error for the position accuracy of the spot center is less than 1.2% in repeated measurements.

边界提取的准确性决定了边界所包围区域的中心或质心的位置精度。

What are your goals and strategies for growth?

你的成长目标和策略是什么？

And unto the angel of the church in Sardis write; These things saith he that hath the seven irits of God, and the seven star I know thy works, that thou hast a name that thou livest, and art dead.

3：1 你要写信给撒狄教会的使者，说，那有神的七灵和七星的，说，我知道你的行为，按名你是活的，其实是死的。