class boundary meaning in English

组界
组限

Statements that lock and release a given object to cross member or class boundaries or both , this practice is not recommended
语句可以跨越成员或类的边界或同时跨越两者的边界，但并不推荐这样做。
In order to investigate the heat and mass transfer properties of the adsorption bed , a one - dimensional mathematical model of adsorption bed is established for the second class boundary conditions , and governing equations in the mathematical model are dispersed with the format
为了研究吸附床的传热传质特性，笔者建立了吸附式制冷系统中吸附床在非第一类边界条件时的一维传热传质的数学模型，并运用有限差分法对该数学模型进行了数值分析。