Standard Substance

用法例句

Determination of Sulfur in Silicon by Standard Substance Combustion Infrared Absorption;

基准物质燃烧红外吸收法测定硅中硫

0460)%(k=2)respectively when measured by certified and secondary reference material.

实验中应用有证二级标准物质级与工作基准物质级氯化钠对硝酸银标准溶液进行定值。

Proper sediments quality criteria(SQC),therefore, are required to indicate the contamination situation.

因此,需要制定沉积物质量基准(SQC),以此作为评价沉积物污染及其生态效应的基础。

The ecotoxicity of the extracted liquor and whole sediment in Wulihu Lake before and after dredging were studied and analyzed, adopting the freshwater sediment quality guidelines and the microbial toxicity test technique.

采用淡水沉积物质量基准和微生物毒性试验方法,对疏浚前后五里湖沉积物提取液和全底泥沉积物的生态毒性进行了研究与分析。

The new advances of deriving the aquatic sediment quality criteria for heavy metals is reviewed according to the newest information on developing sediment quality criteria in Canada, Florida (USA), Australia, New Zealand, British, the Netherlands and Hong Kong Special Administrative Region.

利用20世纪90年代以来加拿大、美国佛罗里达、澳大利亚、新西兰、英国、荷兰及中国香港等国家和地区水体沉积物质量基准研究的最新资料,综述了建立水体沉积物重金属质量基准的方法研究新进展,重点介绍了目前国际上广泛采用的用于制定沉积物质量基准的两种方法—基于生物效应数据库的响应型阈值法(生物效应数据库法)和基于分配模型的相平衡分配法。

The sediment quality criteria(SQC) development efforts have been undertaken mainly by the United States Environmental Protetion Agency for the assessment of environment impact of sediment-associated pollutants in the latest decade.

本文综述了沉积物质量基准的最新进展。

An Equilibrium Partitioning(EqP) approach was used to derive the sediment quality criteria(SQC) values for heavy metals such as cadmium(Cd),copper(Cu),arsenic(As),mercury(Hg) and two organic chlorine pesticides(DDT,HCH) in a sewage reservoir located in Tianjin.

以污染较为严重的天津某污水库的表层沉积物为对象,应用热力学相平衡分配(EqP)法,初步探讨了该水体沉积物中4种重金属(Cd,Cu,As,Hg)和2种有机氯农药〔滴滴涕(DDT)、六六六(HCH)〕的沉积物质量基准(SQC)推荐值。

Application of Equilibrium Partitioning Approach to Derive Sediment Quality Criteria for Heavy Metals

应用相平衡分配法建立污染物的沉积物质量基准

Study on Marine Sediment Quality Criteria for PAHs;

海洋沉积物中多环芳烃质量基准研究

A river kind of sediment Certified Reference Material( CRM) based on natural-matrix for environmental radioactivity has been developed.

研制出一种天然基质的河流沉积物环境放射性标准物质。

Preparation of Five China Sea and Continental Shelf Sediment Reference Materials with Ultra Fine Particle Size

中国海大陆架沉积物超细标准物质系列研制

A review on the reference material series for China Sea and continental shelf sediments

中国海及大陆架沉积物标准物质系列评介

When deposited, 70-80% of the volume of muddy sediments may be water.

泥质沉积物沉积后，体积的70-80％是水。

Impact of sorption and desorption behaviors of lindane on its sediment quality criteria

林丹的吸附解吸行为对其沉积物基准的影响

Deposition is the laying down of sediment that has been transported.

沉积是已搬运的物质再沉积下来。

The "spikes" seen with the silver stain represent the intervening matrix of basement membrane between the deposits.

银染所见的“钉突”是沉积物之间的基膜样物质。

Determination of Arsenic in National Standard Reference Soil and Stream Sediment Samples by Atomic Fluorescence Spectrometry

原子荧光光谱法测定土壤和水系沉积物国家标准物质中砷

Direct coat a version of the roll coating process where the applicator roll revolves in the same direction as the travel of the strip.

沉积量(涂布量)化学转化膜或其它物质在金属前处理过程中的沉积量。

Material balance analysis based on sulfur deposition for closed sulfur-bearing gas reservoir

基于硫沉积的含硫封闭气藏物质平衡分析

DATA PROCESSING TECHNIQUE FOR DUAL-PROBE HEAT-PULSE METHOD TO DETERMINE THERMAL CONDUCTIVITY OF MARINE SEDIMENTS

基于DPHP技术测量沉积物热导率的数据处理

Tectono-Sedimentary Evolution and Its Controls on Basic Petroleum Geological Condition of South Margin of Junggar;

准噶尔南缘构造沉积演化及其控制下的基本油气地质条件

The matrix of bone contains both fibers of the protein collagen and mineral deposits.

硬骨的基质既含有蛋白质的胶原纤维，也含有矿物质沉积。

Research on the Geochemical Feature and Contamination Assessment for Trace Metals in the Sediments from Zhejiang Offshore;

浙江近岸海域沉积物中痕量金属地球化学特征及环境质量评价

Distribution and environment quality evaluation on heavy metals in surface sediments of Pearl River Estuary

珠江口海域表层沉积物中重金属含量分布特征及其环境质量评价

Pollutant Distribution and Risk Based Evaluation of Municipal Canal Sediment;

城市河道沉积物中污染物分布及环境质量风险评估