He said officials made the determination following the discovery of a strip of wreckage floating on the surface of the water some 1,300 kilometers off the Brazilian mainland.
他说,在距离巴西大陆1千300公里的水域发现了漂浮在水面的残骸之后,有关官员做出最后判断。
Determination of free water for compound fertilizers is usually applied Karl Fischer method or vacuum oven method, a different extraction solvent can selected as Karl Frscher method is applied.
复混肥料中游离水含量的测定方法通常采用卡尔·费休法或真空烘箱法,用卡尔·费休法测定时又可选用不同的萃取剂。
The hyperchromic and solubilizing effects of emulsifier op and the better analysis method and conditions of determination of cadmium in Waste Water by Spectrophotometry have been studied.
研究了应用乳化剂OP的增色增溶作用,用直接比色法测定废水中镉的最好分析方法与条件。
This paper focuses on direct determination of anions in environmental water samples by reversed-phase ion-pair chromatography and effects of Se on the growth of vegetable seedling under Cr stress.
本文主要研究了利用反相离子对色谱直接分离测定了环境水样品中含硫及含氮的阴离子和硒对铬胁迫下蔬菜幼苗生长的影响。
The treatment technique of Matigou Mine well water, selection of Coaqulant agent, determination of quantity, selection of equipment and analysis of expense are introduced.
介绍了马蹄沟矿矿井水的处理工艺、混凝剂的选择、投加量的确定、设备选型和费用分析等问题。
As for the poor solubility of tobramycin crystalline product in working medium used in volumetric Karl Fischer titration, two new methods for the water content determination were investigated.
由于妥布霉素固体颗粒在常用滴定溶剂中的溶解度不大,采用常规的卡氏容量法难以快速精确的确定其水含量。
The intrinsic frequency of a beaker can be determined by means of direct determination, resonance or water drip modulation, and each of the methods makes use of the Lissajous figure.
烧杯的固有频率可以用直接测量法、共振法或水滴流调制法加以测定,各法中均利用利萨如图形。
Presents the selection and calculation method and quantity determination of the circulating water pumps, and the operation characteristics of the pumps in parallel.
介绍了循环水泵的选择计算方法,循环水泵台数的确定原则,以及水泵并联运行的特点。
Six laboratories were organized to test and verify the method that determination the beryllium in water and wastewater by graph furnace atomic absorption spectrophotometry.
组织全国六个实验室对石墨炉原子吸收法测定水和废水中的铍进行方法验证。
This paper discusses synthesis of high molecular polyacrylate sodium and molecular determination method, action mechanism as washing aid and high water absorbing resin also are discussed.
介绍了高分子量聚丙烯酸钠的合成及分子量测定方法,以及聚丙烯酸钠作为助洗剂和高吸水性树脂的作用机理。
The laser reflection photoacoustic method was designed for the determination of aniline in water. The basic principle, the experimental setup and the influencing factors were discussed in detail.
提出了用激光反射光声法测定水样中的苯胺,对方法原理、实验装置以及苯胺的最佳显色条件进行了详尽的讨论。
Results show: after the adsorption of gold foam does not wash with water, the direct use of thiourea solution of the cult, the determination of gold a better result.
实验证明:吸附金后的泡沫塑料不用水冲洗,直接用硫脲溶液解脱,金的测定结果更好。
Water quality - determination of dissolved anions by liquid chromatography of ions - part 3: determination of chromate, iodide, sulfite, thiocyanate and thiosulfate.
水质。用液态离子色谱法测定溶解的阴离子。第3部分:铬酸盐碘化物亚硫酸盐硫氰酸盐和硫代硫酸酯的测定。
A method is described for the determination of water content in pectin by the quick moisture apparatus, and the optimum conditions are found as follows: sample mass 1.
介绍了采用水分快速测定仪测定豆腐柴果胶粉的水分含量的方法,确定了最佳测定条件为:试验试样质量1。
The main contents of the paper include: establishment of WUA, management organization and operation of WUA, water price business accounting and determination of WUA, property and water right of WUA.
论文主要研究内容包括:用水者协会的组建、用水者协会的管理机构与运行、用水者协会的水价核算与确定、用水者协会的资产与水权。
The article is based on the determination of some hydrogeological parameters for the exploitation of underground hot-water in Xi 'an area and puts forward some views.
本文依据在西安地区地下热水开发中,对有关水文地质参数的确定提出了看法。
This paper discusses the layout principle and determination of water extracting and filling method ways with focus on application of water filling at multiple points.
本文讨论了抽灌水方式的布置原则和抽灌水方式的确定,并重点讨论了多点灌水方式的应用。
In this paper, characteristic of different methods for the determination of ozone in water and in gas were studied and the influence of temperature on solubility of ozone in water were also studied.
目的研究臭氧气体和臭氧水溶液中各种臭氧浓度测定方法的特点,同时研究了温度对臭氧在水中溶解度的影响。
This new method can not only reflect perfectly the actual condition of water samples but also be popularized and applied to the determination of suspended particles in various water samples.
新方法不仅能很好地反映水样的实际状况,而且可以推广应用于各种复杂水样的悬浮物的测定。
For the standard analytical method, the series of standard solution for the determination of As, se and Hg in water by atomic fluorescence spectrophotometry must be prepared for every test.
在标准分析方法中,采用原子荧光分光光度法测定水中砷、硒、汞所用的标准溶液系列必须每次配制,给工作带来很大的不方便。
Time lapse time difference is an important parameter in the determination of distribution for underground oil and water, because it includes the variation information of reservoir velocity.
而时移时差在确定地下油水分布时是一个很重要的参数,因为时移时差包含了储层速度的变化信息。
Test method, GB/T2912.1—1998 Textiles-Determination of formaldehyde-Part 1: Free and hydrolyzed formaldehyde(Water extraction method), was taken on(initiated?) .
检测方法采取GB/T2912.1—1998《纺织品中甲醛的测定第一部分:游离水解的甲醛(液相萃取法)》。
With the determination of trace Au in ore and the determination of Pb and As in water as examples, the application effectiveness of MFAAT was discussed in detail.
以矿石及其加工产品中微量金的测定和水中铅与砷的测定为例,详细地讨论了微量火焰原子吸收技术的应用效果。
Objective To establish a rapid method having great capability for enrichment and anti-interference, higher sensitivity and good precision for determination of trace silver in drinking water.
目的建立一种富集能力强、分析灵敏度高、抗干扰能力强、精密度好、快速的测定饮用水中微量银的方法。
To establish an assay for the determination of the total components of water-soluble phenolic acidity in danshen and danshen preparation to control their quality.
研究建立丹参及丹参制剂中水溶性酚酸总量的测定方法,以其中水溶性酚酸总量可作为质量控制指标之一。
In the determination of total nitrogen in water sample by flow injection analysis instrument, the concentration of sulfuric acid which used for the preservation of sample affected the result.
用流动注射仪测定总氮水样,发现用不同的硫酸浓度保存总氮样品时,对其测定结果有一定的影响,并与过硫酸钾氧化-紫外分光光度法进行比对和分析。
In the determination of total nitrogen in water sample by flow injection analysis instrument, the concentration of sulfuric acid which used for the preservation of sample affected the result.
用流动注射仪测定总氮水样,发现用不同的硫酸浓度保存总氮样品时,对其测定结果有一定的影响,并与过硫酸钾氧化-紫外分光光度法进行比对和分析。
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