1.
The Effect of Oxygen Vacancy Concentration on the Properties of Perovskite-type Catalysts;
氧空位浓度对钙钛石型催化剂性能的影响
2.
Study on the F′ color center adsorption spectrum of anatase with high concentration of oxygen vacancy using the first principle
锐钛矿高氧空位浓度F′色心吸收光谱的第一性原理研究
3.
Evaluation of Uncertainty in Determination of Sulphur Dioxide in Air
空气中二氧化硫浓度测定的不确定度评定
4.
ambient sulphur dioxide concentration
周围空气的二氧化硫含量；外围空气的二氧化硫浓度
5.
THE DEVELOPMENT OF HIGH CONCENTRATION AIR NEGATIVE ION PRODUCER WITHOUT OZONE
无臭氧高浓度空气负离子发生器的研制
6.
Studies on the Forecast of SO_2 Concentration in Xi'an City;
西安城市空气中二氧化硫浓度预报研究
7.
Numerical Simulation of Oxygen Concentration Distribution in Gob Areas Based on FLUENT
基于FLUENT对采空区氧气浓度场的数值模拟
8.
The Purification of Low Concentration NOx in Cultural Relics Conservation Micro-Environment by Biomass-based Carbon
竹炭净化文物保存微环境空气低浓度氮氧化物
9.
The concentrations of nitrogen dioxide and ozone also exceed the objectives for a few days in a year.
二氧化氮及臭氧的浓度，每年也有几天超出了空气质素指标。
10.
Assessment of uncertainty of ozone in air measured by indigo disulphonate spectrophotometry
靛蓝二磺酸钠分光光度法测定空气中臭氧浓度的不确定度评定
11.
Effect of Vacancy Concentration on Elastic Property in Aluminum under High Pressures;
高压下空位浓度对金属铝弹性性质的影响
12.
determination of mass concentration of sulphur dioxide in ambient air (thorin spectrophotometric method)
环境空气中二氧化硫质量浓度的测定-钍试剂分光光度测定法
13.
Premature infants placed in incubators to breathe oxygen in concentrations greater than in air can develop irreversible eye damage.
早产儿保育器中的早产婴儿呼吸浓度大于空气中浓度的氧会导致不可逆转的视力损害。
14.
This paper introduces a new air negative ion producer,wbichcan producehigh concentration of air negative ions, virtually no ozone, Ozone can be con-trolled effectually.
本文介绍一种输出负离子浓度高，几乎无臭氧的空气负离子发生器。
15.
The oxygen content in the vent pipe of the equipment has to be checked for the concentration of O2 to get the required amount of Nitrogen.
需要检查设备放空管线中氧气的浓度，来确定所需要的氮气的量。
16.
The Development of a Monitor for UDMH and Nitrogen Dioxide of High Concentration in Air
空气中高浓度偏二甲肼和二氧化氮监测仪的研制
17.
Effect of Free Air CO_2 Enrichment (FACE) on Element Absorption and Alocation of Rice (Oryza Sativa L.);
开放式空气中二氧化碳浓度增高（FACE）对水稻元素吸收和分配的影响
18.
Characteristics of the carbon dioxide concentration near the surface layer of the atmosphere in the arid region of the northern temperate zone
温带干旱地区近地层空气二氧化碳浓度的变化特征