To keep a large circulated water excellent quality,reasonable replaced time is one of the key factors.
论述了水体置换与置换时间特性及其影响因素,并结合工程实例,给出了基本置换时间和附加置换时间的计算思路和方法,用于大型循环水体特性研究和计算。
This article regard the gas holder exchange as the object,from two aspects of the gas holder directly exchange and the gas holder indirectly exchange carries on discusses its efficiency and feasibility.
以管道煤气气柜的气体置换为对象,探讨直接置换和间接置换的经济性和可行性。
The problem about lifting of property(Ck-K) and property(Sk-K) in the substitution space P_XX_n was mainly discussed.
本文主要解决Banach空间X的(Ck-K)性质与(Sk-K)性质在置换空间PxXn中的提升问题。
In this paper, we mainly discuss some properties of approximative subspaces in substitution spaces P xX n.
在本文中我们主要讨论了置换空间PxXn中逼近子空间的性质,它们是lp(Xn)中相应结果的推