mass function中文什么意思
大数函数
质量分布函数
质量函数
- mass: n. 1.块，堆，团。 2.群众，集 ...
- function: n. 1.功能，官能，机能，作用。 ...
- mass function; quality function: 质量函数
例句与用法
更多例句： 下一页- Probability mass function
概率群分布函数 - Comparing with the current observations , which include the number density distribution in space , mass function , etc . , the so - called standard modes for both the power law and gaussian cluster initial mass functions are selected among many runs of simulations . the deviation from the standard modes , which is resulted from the change of the parameter for the initial conditions , is discussed in detail . the discussion of the model parameters is also presented although they are adopted as the typical values based on previous work
对应一定的初始分布我们发现无论是幂律的还是对数高斯的球状星团初始质量谱经过长时间的动力学演化都会得到和现在银河系观测到的球状星团系统相符的对数高斯的质量分布；动力学演化会明显地改变球状星团系统的空间密度分布，靠近银心区域的球状星团瓦解得更多；经过动力学演化后的球状星团速度分布函数在靠近银心的区域明显得不同于初始分布，初始拥有较大轨道偏心率的球状星团更容易瓦解。 - Now the modes of wireless email service are sms , mms and wap etc . these modes only simulate the email service and do n ' t use the mass function of email service . expediency , operation and expansibility is n ' t satisfied by most people . the paper proposes the wireless mail system based on j2me
目前的无线邮件服务模式主要是sms 、 mms 、 wap等简单的模拟邮件服务，并没有使用到邮件服务的大多数功能，而且使用的方便性、操作性、功能扩展性等都不能满足应用的需求。 - The number density distribution of globular cluster in space will change with time due to the dynamic evolution , especially for those in the central region of the galaxy ; 5 . for the power law initial cluster mass function , the peak value of the mass function after the dynamic evolution is sensitive to the lower limit of the initial mass function we adopt . the suggested value in this paper is - 104m , which is consistent with that reduced from the dynamical analyses for the giant molecular clouds
对于幂率的初始质量谱，球状星团系统动力学演化后质量分布的转折点质量主要是由初始质量函数的质量下限决定的，最为适合的值为10 ~ 4m _ ；幂率的初始质量谱的谱指数对球状星团系统动力学演化后质量分布的转折点质量也有影响，其最佳值为1 . 5 2 . 0 ；经过大约5gyr的动力学演化，幂率的初始质量谱就会演化成为高斯的对数质量分布并具有在随后的动力学演化中保持对数高斯形式质量分布的特性。 - Given the initial conditions including ( 1 ) number density distribution in space which has the similar form to the present day ones , ( 2 ) both the power law and gaussian mass functions for clusters , and ( 3 ) two different velocity distributions which one has a constant dispersion and the other is described by the eddington formula , the dynamical evolution of globular clusters in our milky way galaxy is investigated in detail by means of monte carlo simulations
本文采用与观测结果具有相同形式的球状星团空间密度分布函数，在给定两种球状星团系统的初始质量谱(幂律的和对数高斯的)和两种球状星团系统的初始速度分布函数(爱丁顿速度分布函数和常数的速度弥散度)条件下，我们采用montecarlo的方法对球状星团系统的动力学演化进行讨论。
