class core是什么意思

用法例句

It is included that constant 44 within the limits of nuclide in stable region can be divided into 2,4,8,16,8,4,2, which adjacent numbers are increased or decreased with twofold,according to limits regularity of nuclide of the same kind in the square nuclear chart which new parameters S and H are introduced.

在引入新参量ＳＨ 的正方形核素图中，由同类核素的范围规律，综合得出核素稳定范围常数４４ 可分解为２ ，４ ，８ ，１６ ，８ ，４ ，２ ，其相邻数之间以２ 倍增长与简并，似能以核子由三个夸克组成解释。