invertible sheaf是什么意思

网络释义

用法例句

In this paper The components, characteristic and thermochromatic mechanism of inorganic and organic reversible thermochromic materials were widely summarized.

本文介绍了无机可逆示温材料和有机可逆示温材料的组成、特点以及热致变色机理等,简要阐述了无机、有机和液晶可逆示温材料在工业、农业、医药以及日常生活方面的应用,充分说明了可逆示温材料具有广阔的应用前景。

Combining their special surface micro-/nano-surface structures and their special surface ultraviolet sensitivity,reversible super-hydrophobic and super-hydrophilic properties were realized via UV light irradiation and dark storage alternating treatment.

结合它们特殊的微米/纳米表面几何结构以及表面紫外光敏感性,在紫外光以及暗处保存的交替作用下,我们实现了表面超疏水以及超亲水的可逆转变性能。

The hydrate showed reversible thermochromism.

该结晶水合物表现出可逆的热色性,当加热到140℃时,它会由橙红色变为明亮的红色;随着温度缓慢降低,其颜色也恢复为原来的橙红色。

This paper also investigated the reversibility of the hydrogels.

通过共聚制得聚(丙烯酸)-CO-(α-甲基丙烯酸)水凝胶,研究了不同的合成条件下的溶胀率,以及在恒定pH时,交联剂、单体浓度对溶胀率的影响,研究了此凝肢的pH可逆性。

A stochastic dynamic programming (SDP)model using the reversibility of the transition equations and its solution method are proposed.

采用具有可逆性的随机动态规划提出了多水库系统随机优化运行模型和相应的求解方法。

In this paper,we study some similar properties of T and ■~((*)),such as if T∈B(H),w(T)≥w(■~((*)))∶T is inverse if and only if ■~((*)) is inverse and so on.

研究了T与它的*-Aluthge-变换子■~((*))的一些相似性质,如若T∈B(H),则w(T)≥w(■~((*)))∶T可逆当且仅当■~((*))可逆等。

A special kind of invertible entwining structure;

一类特殊的可逆缠绕结构

In this paper,We discuss M AB (T)=ATB,A,B∈T(N),M AB ∶T(N)→T(N);prove that M AB is invertible iff both A and B are invertible in T(N),and also give some necessary and sufficient conditions of which M AB is injective or M AB is surjective.

讨论了初等算子MAB(T) =ATB ,其中A、B∈T(N) ,MAB:T (N)→T (N) ;证明了MAB可逆当且仅当A和B在T(N)中均可逆 ,同时给出了MAB为单、满的充要条

This paper deals with the properities of (weakly) invertible Moore automata,and gives the necessary and sufficient condition on which Moore automata is (weakly) invertible as |S| = |Y|.

主要讨论了Moore自动机(弱)可逆的一些性质,并给出了当|S|=|Y|时,Moore自动机(弱)可逆的充要条件。

impossible to reverse or be reversed.

不能倒逆或不可逆转。

non-reversible engine

不可逆转式发动机不能逆转发动机

reversible TV channel

双向[可逆]电视通道

digital milliampere reversible counter

数字毫安可逆计数仪

externally reversible motor

双向启动可逆电动机

universal reversing roughing mill

万能可逆式粗轧机座

colour reversible electrochemical filter

彩色可逆电化学滤光器

DC reversible variable speed motor

直流可逆变速电动机

non repetitive peak off state voltage

不可逆峰值断态电压

reversibility of tubal sterilization

可逆性输卵管绝育术

reversibility of vasectomy

可逆性输精管绝育术

four-high non-reversing cold rolling mill

不可逆式四辊冷轧机

four high reversing cold strip mill

四辊可逆式带材冷轧机

two-pin reversible plug

两脚可逆转接驳的插头

non-reversible plug

不可逆转接驳的插头

two-high reversing-plate mill

二辊可逆式中厚板轧机

two-high reversing beam mill

二辊可逆式钢梁轧机

The lapse of time is irreversible.

时光流逝不可逆转。