1) θ-cluster point H-closed spaces
Ⅱ-列闭空间
2) sequentially H-closed spaces
Ⅱ-序列闭空间
3) S-countable closed spane
S-可列闭空间
4) sequences of close intervals
闭区间列
5) confined space
密闭空间
1.
Analysis of 122 occupational accident cases in confined space;
密闭空间作业工伤事故百例分析研究
2.
This paper chosed special representative confined spaces as study objects, summarized the total character of indoor air pollutants and its influence factors, provided reference for controlling and management of pollutants.
论文选择了有特殊代表性的密闭空间作为研究对象,研究总结其污染物的总体特征及影响因素,为这类密闭空间污染控制和治理提供科学依据。
6) enclosed space
封闭空间
1.
In this paper,a theoretical study on active control of within enclosed space surrounded by flexiblestructure is accomplished.
本文从理论上研究了外力激励弹性结构条件下封闭空间有源消声问题。
2.
Based on the basic theory of ANC within the enclosed space,this paper models the enclosed space with the COMSOL software,and presents the simulation and analysis effects of noise reduction which is derived from the numbers and location of the secondary noise resources.
基于封闭空间有源消声的基本理论,利用COMSOL软件对封闭空间声场进行了仿真建模,并模拟分析了次级声源的数量和位置关系对消声效果的影响。
补充资料：H闭空间
H闭空间
H-dosed space
H闭空间[H一山坦翻月，理;H一3aM，。yToe"pocTpa一cT，】，维对印宇回(ah幻拍把珍一cl胎司spa戊) 一个卜恤曰面心空间(Ha必do盯sP暇)，在映人任意Ha议月。盯空间Y的任何拓扑嵌人下，被映成Y中的闭集.H闭空间的特性是:空间的任何开覆盖都含有有限子族，其元素的闭包构成该空间的覆盖.正则的H闭空间是紧空间.如果一个空间的每个闭子空间都是H闭空间，则该空间本身是紧空间 .Hat目orfT空间的H闭扩张理论已经发展起来，
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条