普通密实的混凝土 ordinary dense concrete
通路的密度 intensity of distribution
辐射通量的谱密度 spectral density of radiant flux
通往幸福的秘密 The secrets to happiness
基于混沌的保密通信 Chaos-based Secure communication
未加密的通行码档案 unencrypted password file
络的秘密通信 secrete and invisible communication
的有效通量密度 Effective Isotropic Radiated Power ; EIRP
这个磁通值可以容易地从图5中永磁极的磁密和铁极磁密之间的差值和气隙面积求出。
The value of this flux can easily be deduced from the difference between flux densities at magnet poles and core poles shown in Fig. 5, and the gap area.
借鉴数论方法中的密率论，给出判别正项级数敛散性的密率判别法，此方法特别适用于判定一些较难或不能给出通项表达式的级数的敛散性。
By using the density theory of theories of Numbers, the article gives the density discrimination method determining the convergence and divergence characteristic of the positive term series.
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