double-negation law是什么意思

用法例句

Discussing the management baseed on double capability of medical equipmnet;

论医疗设备的双重能本管理

This article,analyzes this novel in the perspective of fable-type novels,and tries to digs out the double effect of aesthetics found in the novel.

本文旨在从寓言体小说的角度重新解读《猫城记》,并试图分析由此而产生出的双重审美效果。

Dual Fluorescence of Methyl Salicylate in Aqueous Solution of β-Cyclodextrin;

水杨酸甲酯在β-环糊精水溶液中的双重荧光光谱

The influence of β-CD and DM-β-CD on dual fluorescence of OS is investigated.

考察了不同溶剂中水杨酸异辛酯(OS)的双重荧光性质,研究了β-环糊精(-βCD)和二甲基-O-β-环糊精(DM-β-CD)对OS双重荧光光谱的影响,并通过OS分子和-βCD空腔的大小对比,对OS分子与-βCD空腔的结合位点进行了讨论。

Dual fluorescence at ca .

1-萘胺 (NA)的基态与激发态电离已有诸多报道 ,但主要集中于低 p H介质中 1 -萘铵离子的酸碱电离过程 ,并已在 NA的酸性水溶液中观察到了分别对应于萘铵离子和中性萘胺分子的双重荧光[1] 。

Preparation and properties of UV-heat dual curing materials;

光-热双重固化材料的制备及性能研究

This paper reviews the recent research development of UV curing systems including free radical, cationic,free radical-cationic and dual curing system.

综述了紫外光固化体系,包括自由基紫外光固化体系、阳离子紫外光固化体系、自由基-阳离子混杂光固化体系和双重固化体系的研究进展。

Effect of ultraviolet and heat dual curing on properties of coatings was studied and mechanism of ultraviolet and heat dual curing was discussed.

探讨光、热固化的原理及特点,研究了紫外光和热双重固化对涂料性能的影响。