助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   determination of hardness 的翻译结果: 查询用时:0.014秒
图标索引 在分类学科中查询
所有学科
化学
更多类别查询

图标索引 历史查询
 

determination of hardness
相关语句
  硬度的测定
     In the determination of hardness of industrial wa-ter, the change of endpoint color is sharp.
     用于工业用水硬度的测定,终点颜色变化敏锐。
短句来源
  测定硬度
     When EDTA method is used for the determination of hardness, disturbances with some water samples are serious and the hardness cannot be measured accurately.
     EDTA法测定硬度时,某些水样干扰严重,硬度不易测准。
短句来源
     The bright nickel and the nickel lanthanum plating surface and the section test specimen are prepared separately,the observation of the surface,the cross section organization and determination of hardness degree are conducted with electron microscope. The hardness of plating surface will vary with the increase of the proportion of lanthanum,up to 475HV higher77HV than bright nickel plating when the content of LaCl_3·7H_2O reach 5 g/L.
     以普通亮镍镀液为基础,分别制备亮镍和镍镧镀层表面及截面试样,用显微硬度计观察表面、断面组织并测定硬度,随着镧含量的增加,镀层硬度发生变化,当LaC l3.7H2O达到5 g/L时,镀层硬度最高为475HV,比亮镍镀层高77HV。
短句来源
     Such disturbances can be avoided when ion chromatography is used for the determination of hardness.
     采用离子色谱法来测定硬度,可避免此类干扰。
短句来源
  硬度测定
     Uncertainty in the Determination of Hardness in Water
     水中总硬度测定的不确定度评定
短句来源
     Determination of Hardness in Nitrided Case of Steel Parts
     钢铁零件渗氮层硬度测定
短句来源
     Objective To explore the methods for the evaluation of the uncertainty of the determination of hardness in water.
     目的探讨水中总硬度测定的不确定度评价方法。
短句来源
     Methods A certain water sample was analyzed for the hardness according to EDTA-Na2 volumetry ruled by the Sanitory Standard for Drinking Water(2001). The mathematical model of the determination of hardness in water was established based on JJF1059-1999. The variance composition of the relative uncertainty was analyzed.
     方法按《生活饮用水卫生规范》(2001)的乙二胺四乙酸二钠容量分析法测定了某水样的总硬度,参考JJF1059-1999建立了水中总硬度测定的数学模型并进行了计算。
短句来源
     The relative uncertainty and the expand uncertainty of the detection of hardness in the water sample were 0.008, 3 mg/L respectively. The expression of the uncertainty in the determination of hardness was (137±3)mg/L.
     水中总硬度测定的相对不确定度为0.008,扩展不确定度为3mg/L,不确定度的表达为(137±3)mg/L。
短句来源
  “determination of hardness”译为未确定词的双语例句
     SPECTROPHOTOMETRIC DETERMINATION OF HARDNESS OF INDUSTRIAL WATER
     分光光度法测定工业用水总硬度
短句来源
     The Synthesis of a New Chromogentic Reagent Dibromo-o-Carboxychlorophosphonazo and its Application for the Determination of Hardness of Water and Calcium of Magnesium in Water
     新显色剂二溴邻羧基偶氮氯膦的合成及其应用于测定水的硬度和钙镁含量
短句来源
     QUANTITATIVE DETERMINATION OF HARDNESS OF SCARS
     皮肤瘢痕硬度的定量测定
短句来源
     Rapid Determination of Hardness of Water with ICP-AES
     ICP-AES法快速测定酿造水的硬度
短句来源
     QUANTITATIVE DETERMINATION OF HARDNESS BY IMAGE ANALYSIS FOR RED WHEAT
     图像分析测定红麦硬度方法的研究
短句来源
更多       
查询“determination of hardness”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  determination of hardness
Ultrasonic longitudinal- and shear-wave velocities were found to be useful in identifying the Ac1 and Ac3 temperatures and for the determination of hardness in the intercritical region.
      
Determination of hardness from the resonant frequency of an electroacoustic transducer
      
Empirical method for the determination of hardness from low-load ball indentation tests for brittle materials
      
Determination of hardness to elastic modulus ratios using Knoop indentation measurements and a model based on loading and reload
      
For the determination of hardness we used the Vickers Method.
      


A series of Ni-zn ferrite powders were prepared by coprecipitationin the form of the oxalates.Their physico-chemical changes and the fo-rmation of ferrites with spinel type structure during heating processhave been investigated by thermal analysis,infrared absorption spectro-scopy,x-ray diffraction and SEM analysis.The Hot-pressed ferritesprepared by the ferrite powders were observed micrographically.Expe-riments on the determination of hardness Hv have shown that accordingto the sizes and length of cracks...

A series of Ni-zn ferrite powders were prepared by coprecipitationin the form of the oxalates.Their physico-chemical changes and the fo-rmation of ferrites with spinel type structure during heating processhave been investigated by thermal analysis,infrared absorption spectro-scopy,x-ray diffraction and SEM analysis.The Hot-pressed ferritesprepared by the ferrite powders were observed micrographically.Expe-riments on the determination of hardness Hv have shown that accordingto the sizes and length of cracks around the traces an estimation of themachinability of hot-pressed ferrites may be given.

本文用热分析、红外吸收光语、X-射线结构分析及扫描电子显微镜等方法,研究了 N-OX-4及 N-OX-8两种镍锌铁氧体的共沉淀粉料在灼烧过程中的物理化学变化以及尖晶石铁氧体的生成情况。同时对用这种粉料制成的热压铁氧体的显微结构进行了观察,实验表明,用显微硬度计在样品镜面上打压痕的方法可以评定其精密加工性能。

This paper has studied the color reaction of metal ions with xylene orange in the ammoniacal solutionwith CPB existing and tested the change of endpoint color in the abovementioned system with xyene orange asa coordination titrations indicator. The experiment results show that xylene orange can be used not only as di-rect coordination titrationsindicators of Ca~(2+)、Mg~(2+)、Zn~(2+)、Co~(2+)、Cd~(2+)、Sr~(2+)、Zn~(2+)、Cd~(2+)、Cu~(2+) but also as backtitrations indicators of Ca~(2+)、Mg~(2+)、Sr~(2+)、Zn~(2+)、Cd~(2+)、Cu~(2+)....

This paper has studied the color reaction of metal ions with xylene orange in the ammoniacal solutionwith CPB existing and tested the change of endpoint color in the abovementioned system with xyene orange asa coordination titrations indicator. The experiment results show that xylene orange can be used not only as di-rect coordination titrationsindicators of Ca~(2+)、Mg~(2+)、Zn~(2+)、Co~(2+)、Cd~(2+)、Sr~(2+)、Zn~(2+)、Cd~(2+)、Cu~(2+) but also as backtitrations indicators of Ca~(2+)、Mg~(2+)、Sr~(2+)、Zn~(2+)、Cd~(2+)、Cu~(2+). In the determination of hardness of industrial wa-ter, the change of endpoint color is sharp.

研究在演化十六烷基吡啶存在下的氨性溶液中,金属离子与二甲酚橙的显色反应。并试验了在上述体系中用X.O作为配位滴定指示剂时终点颜色变化。试验结果表明X.O能作为的Ca~(2+)、Mg~(2+)、Zn~(2+)”、Co~2”、Cd~2”、Cu~(2+)的直接配位滴定指示剂,也可用作Ca~(2+)”、Mg~(2+)、Sr~(2+)、Zn~2”、Cd~(2+)、Cu~(2+)的返滴定指示剂。用于工业用水硬度的测定,终点颜色变化敏锐。

A new potentiometric titration system for determination of total Ca 2+ ,Mg 2+ ions by hardness ISE,which consists of simple and effective gradient mixing tube designed by us has been devloped.It is established that the carrier stream if 10 -4 ?mol·L -1 EDTA solution as titrant.The flow rate is 8.0?ml·min -1 ,the volume of gradient mixing tube is 350 μl and the volume of sample solution is 120 μl.About 60 samples can be analysed per hour·10 -5 ~10 -1 ?mol·L -1 Ca 2+ and Mg 2+ can be...

A new potentiometric titration system for determination of total Ca 2+ ,Mg 2+ ions by hardness ISE,which consists of simple and effective gradient mixing tube designed by us has been devloped.It is established that the carrier stream if 10 -4 ?mol·L -1 EDTA solution as titrant.The flow rate is 8.0?ml·min -1 ,the volume of gradient mixing tube is 350 μl and the volume of sample solution is 120 μl.About 60 samples can be analysed per hour·10 -5 ~10 -1 ?mol·L -1 Ca 2+ and Mg 2+ can be determined by adjusting the concentration of titrant.The method has been applied to determination of hardness for water and drinks.The analytical results are satisfied.

利用自制梯度混合室 ,建立了离子选择电极流动注射电位滴定测硬度的新方法。确定载流为 10 - 4mol·L- 1EDTA溶液 (滴定剂 ) ,流速 8.0ml·min- 1,进样体积 12 0 μl ,分析速度 60样·h- 1,通过调节滴定剂浓度 ( 10 - 5 ~ 10 - 3 mol·L- 1) ,可检测 10 - 5 ~ 10 - 1mol·L- 1Ca2 +、Mg2 +。方法用于天然水和饮料分析 ,结果令人满意

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关determination of hardness的内容
在知识搜索中查有关determination of hardness的内容
在数字搜索中查有关determination of hardness的内容
在概念知识元中查有关determination of hardness的内容
在学术趋势中查有关determination of hardness的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社