English translation for "时角"

[ shíjiǎo ]
[天文学] hour angle

Example Sentences:

	1.	the sun's hour angle counts from the middy position and changes 360°per day or 15°per hour. 太阳的时角从中午的位置算起，每天改变360或一小时变化15。
	2.	Excess of hour angle increment 时角增量超差
	3.	The concept of row ( column ) transposed matrix and row ( column ) symmetric matrix is given , their basic property is studied , and the formula for full rank factorization and orthogonal diagonal factorization of row ( column ) symmetric matrix are presented , which can reduce dramatically the amount of calculation and save the cpu time and memory without loss of any numerical precision 摘要提出了行（列）转置矩阵与行（列）对称矩阵的概念，研究了其性质，给出了行（列）对称矩阵的满秩分解和正交时角分解公式，极大地减少了行（列）对称矩阵的满秩分解和正交对角分解的计算量与存储量，且没有降低数值精度。
	4.	In the last chapter , by introducing the isochronous center of real systems into complex planar and defining complex center and complex isochronous center , a concise linear recursion formula for period constants is given , necessary and sufficient conditions of complex isochronous center ( the time - angle difference theorem ) proved , conditions of real systems with linearizable center and saddle treated unitedly and the isochronous center conditions discussed fully for a class of real planar cubic systems 在第七章，通过把实系统等时中心引入复平面研究，定义了复中心和复等时中心，给出了等时中心周期常数计算的简明的线性递推公式，证明了等时中心判定的充分必要条件（时角差定理人统一地处理了实系统具有可线性化的中心和鞍点条件，并对一类实平面三次系统的等时中心条件进行了完整研究

Similar Words：

"时间耦合" English translation, "时兼" English translation, "时见" English translation, "时剑" English translation, "时将" English translation, "时角差" English translation, "时角赤纬轴座架" English translation, "时角的增量" English translation, "时角法" English translation, "时角方位图" English translation