查询词典 quantitative determination

Some experiences that how to raise accuracy in volatile matter determination were stated from several different aspects,such as crucible and support,determination of muffle furnace and constant temperature,coal sample weighting and crucible placing and correct understanding of calculation formula,etc.

从坩埚及其支架、马弗炉及恒温区的确定、煤样称取及坩埚摆设和正确理解计算公式等方面，阐述在煤的挥发分测定过程中如何提高准确度的一些体会。

The following steps were taken:(1) design of a grading system model;(2) determination of proportions of histologic grades by naked-eye evaluation and by digital measurement;(3) evaluation of metastasis according to proportions of grades;(4) determination of the influence of site of grade 3 in nodal metastasis;(5) design of a Gleason-like scoring system; and (6) statistical evaluation.

接着，我们进行了以下步骤：（1）设计好我们的分级系统；（2）肉眼和计算机软件分别评估确定各级组织学图像所占比例；（3）根据各级组织学图像所占比例来评估淋巴结转移情况；（4）得出3级组织学图像在瘤组织不同区域对淋巴结转移的影响；（5）设计出Gleason样的评分分级系统；（6）统计分析。

A new catalytic spectrophotometric method for the determination of trace iodide has been established by reverse flow injection technique based on iodide catalyzing determination reaction of victoria blue with potassium bromate in the phosphoric acid.

基于在磷酸介质中I-对溴酸钾氧化维多利亚蓝褪色反应的催化作用，建立了一种用反相流动注射催化动力学光度法测定微量元素碘的新分析体系，该方法的线性范围为0.2~4.0μg/mL，检出限为0.12μg/mL，相关系数为

Methods The acid-base titrations was used for determination of benzoic acid and salicylic acid,UV was used for determination of salicylic acid.

用中和法测定两酸的总量，用紫外分光光度法测定水杨酸的含量，从总量中减去水杨酸的含量即为苯甲酸的含量。

Mainly uses in the laboratory, the Industrial and mining establishment, the universities, colleges and institutes, the Scientific research Unit making the ultimate analysis determination, the ash content determination, the few low melting point metal to fuse, other small heat treatments and experiment and so on metal parts quenching, annealing, tempering, the electric stove may also use in the high temperature heating experiment.

主要用于实验室、工矿企业、大专院校、科研单位作元素分析测定、灰份测定、少量低熔点金属熔解、其它小型金属零件淬火、退火、回火等热处理和实验之用，电炉还可用于高温加热实验。

The curve of work in rapid determination of COD of printing and dyeing is settled through lots of expemiments, referencing normal curve and data involved. It is applied to following experiments in determination of COD of wastewater.

3参照COD的标准测定法及相关资料，通过多次试验，并参照标准曲线，建立了印染废水中COD快速测定的工作曲线。

Take the mature evening primrose seed as raw material extraction evening primrose oil, through the optimized craft, the determination influence factor, returns to parents' home by the 510nm wave length extinction value determination oxidation inhibitor and the emulsifier sees the star anise oil the oxidation influence.

急寻论文摘要翻译，请好心人帮帮忙1以成熟的月见草籽为原料提取月见草油，通过优化工艺、确定影响因素，以510nm波长的吸光度值测定抗氧化剂和乳化剂对月见草油的氧化的影响。

Maternal plasma and umbilical cord vein concentration of LPO and the amount of RBC-SOD were measured by thiobarbituric acid fluorimetric determination and catechol self-oxidation determination respectively.

目的 探讨过氧化脂质和红细胞超氧化物歧化酶活性在妊娠肝内胆汁瘀积症病理生理变化中的作用。

The determination of the plumb-line coordinate system, relating to three ground control points and their cooresponding images on the photograph, means a determination...

每一像點在此垂綫坐標系上的關係完全可以藉攝影高度的得知而決定；此種關係的決定即相當於像片在攝影瞬間的空間位置的决定。

A new method of oscillographic titration for the determination of nitrogen content in flour is described The sample was digested with H 2SO 4 Na 2SO 4 CuSO 4 Oscillographic titration is conducted on NH + 4 with Na TPB method,then calculate the nitrogen content Compared with standard methods,this method choose innoxious titrant,has a sharp titration endpoint, needs no distillation absorption and indicator It has the advantages of being easy and quick in operation,and the determination re...

研究了面粉中蛋白质含量的示波滴定法。样品用H2 SO4 Na2 SO4 CuSO4 消化处理，N以NH4 +的形式存在于试液中，用过量四苯硼钠沉淀铵，沉淀过滤，过量的四苯硼钠用氯化四乙基铵标准溶液返滴定，以四苯硼钠切口消失为终点，计算出氮含量，再换算为蛋白质含量。与通用的标准分析方法相比较，本方法所用试剂无毒，终点变化敏锐，不需蒸馏吸收，不外加指示剂，具有操作简便、快速，测定结果准确可靠。

It's not quite as simple as that.

并没有那么容易。

It debuted in 1992 in Japan and the United Kingdom, and 1993 in the United States.

它首次亮相于1992年在日本和英国，在美国1993年。