核心坍塌是否能产生GRB的关键因素，似乎在于原来恒星临终时的质量与转动速率。
The deciding factors for whether a core collapse produces a GRB appear to be the mass and rotation rate of the progenitor star at the time of its death.
而增加转动量子数不利于反应的进行。同时也计算了该反应的反应截面和速率常数。
The rate constants and the reaction cross sections for the title reactions have also been computed.
讨论了等效转动矢量法及其衍生的一系列修正算法和优化算法，并作了精度分析和数字仿真，并对根据角增量提取角速率的方法进行了研究和验证。
It is discussed that the optimized attitude algorithms and corrected attitude algorithms which are derived from the former. Then those are analyzed and emulated in Matlab.
讨论了等效转动矢量法及其衍生的一系列修正算法和优化算法，并作了精度分析和数字仿真，并对根据角增量提取角速率的方法进行了研究和验证。
It is discussed that the optimized attitude algorithms and corrected attitude algorithms which are derived from the former. Then those are analyzed and emulated in Matlab.
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