primal problem

基本解释

A primal problem that has no solution has an unbounded dual problem.
无解的原始问题就会有一个无界的对偶问题。
The dual problem is suit for the light dimensional input space and the primal problem can be solved better when N is bigger.
其优点在于对偶问题适用于高维输入空间，而原始问题在N很大时能被更好地解决。
The paper firstly starts with the impendence and importance of key account marketing strategy to domestic IT enterprises and explain research purpose and primal problem hereto;
本文首先从大客户营销策略对我国IT产品企业的紧迫性和重要性入手，阐明了本文研究目的和主要问题；