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
   时间 在 环境科学与资源利用 分类中 的翻译结果: 查询用时:0.097秒
图标索引 在分类学科中查询
所有学科
环境科学与资源利用
有机化工
一般化学工业
外科学
中国文学
气象学
神经病学
心理学
哲学
更多类别查询

图标索引 历史查询
 

时间
    很抱歉,暂未找到该词条在当前类别下的译词。您可以查看在所有学科下的译词。
相关语句
  “时间”译为未确定词的双语例句
    LASER-TIME RESOLVED FLUORIMETRIC DETERMINATION OFTRACE OF BORON IN U_3O_8
    激光-时间分辨荧光法测定U_3O_8中痕量硼
短句来源
    Single factor tests and orthogonal test show that,adopting thiosulfate technique,gold recovery could exceed 90.1% after leached for 3 h in alkaline environment at temperature of 50~55 ℃,and the optimum feeding mass/mass ratios of reagents to the dried sludge are: Na2S2O3·5H2O 72.1%,NaOH 11.3%and Na2SO3 11.3%.
    通过单因素和正交试验得出:在反应温度50~55℃,反应时间3h,试剂与干污泥的最佳质量比为:Na2S2O3.5H2O72.1%,NaOH11.3%,Na2SO311.3%,此时浸金率可达90.1%以上。
短句来源
    Under these conditions,the biosorption capacity was 91.82±0.54 mg·g-1.The blank and copper-sorption yeast were studied by Fourier Transform Infrared(FTIR) spectroscopy.
    L-1,吸附温度25℃,吸附时间2.5 h. 此时啤酒废酵母对Cu2+的吸附量可达91.82±0.54 mg.
短句来源
    The results showed that the chromium ions removing rate could get to about 70% under the amount of sawdust was 1 g(40 g/L),pH is 2,treating 60 min and 30℃.
    结果表明,经改性处理过的木屑在用量为40g/L,pH值为2,吸附时间为60min,吸附温度为30℃的条件下,处理含铬废水的去除率可达70%左右;
短句来源
    In the study catalytic oxidation process is employed for the advanced treatment of the liquid. Optimum conditions for the treatment of the wastewater with Fenton reagent are determined through experiments. In the experiments pH ranges from 2.15~3.5,the dosage of FeSO4 and H2O2 is 450mg/L and 300mg/L respectively,and after 0.5h reaction,the rate of COD removal is more than 60%.
    采用Fenton试剂催化氧化法对该生化处理出水进行试验研究,通过试验确定Fenton反应的最佳条件为pH2.15~3.5,硫酸亚铁和过氧化氢投加量分别为450mg/L和300mg/L,反应时间0.5h,COD去除率为60%以上.
短句来源
更多       
查询“时间”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
没有找到相关例句


Data oF the relation between the degree of concentration and the density of concentrated sea-water within the range 3.5-36°Be' have been re-determined, using Xiamen(Amoy)sea-water, for comparison with those obtained by previous workers. The results discussed. A more simpie empirical equation for the range 3.5-26°Bc' has been obtained. The necessity of standardizing the process of determination and of using a definite reference density as 100% for the scale of degree of concentration has been emphasized.

海水浓缩率与比重的关系数据过去有不少测定,但有出入。本实验取厦门海水样品重新测定自3.5—36°Be范围的浓缩率,以便与前人数据比较。结果:(1)发见海水样品原比重不同并不影响浓缩率与比重的关系,只须统一以一个比重的浓缩率为100%作标准;(2)得到一个适应范围较宽(3.5—26°Be′)的简单经验方程式;(3)发见浓缩后静置的温度和时间以及分离固体物的方法对有固体物析出的浓缩滤液的比重数据影响很大,并建议统一规定操作规程,统一采用一定比重为标准,以得到一套统一的标准的浓缩率与比重关系数据,以供实际应用。

The complexometric titration method of Bennewitz and Tanzer was improved to determine the phosphorus content of a few organophosphorus componuds containing C—P bonds. In order to obtain accurate rcsults, certain aspects such as the volume of the combustion flask, the duration of boiling and the purity of reagents must be noticed. It was found that the addition of potassium cyanide was unnecessary for common organophosphorus compounds. The absolute errors were less than 4±0.3%.

用Bennewitz及Tanzer的半微量絡合滴定法測定了一些含碳-磷键有机化合物的含磷量。欲得到准确的結果,必須注意燃燒瓶的容量,煮佛时間及試剂純度等条件,对一般有机磷化合物来說,不需加氰化鉀作屏蔽剂,絕对誤差都在±0.3%以下。

Using acetic, sulfuric, hydrochloric, phosphoric and perchloric acid as acidifying agent, gelation time of monostlicic acid of different concentration at various pH was determined. All the log t--pH curves were of N-Shape. The pH value at the minimum point of each curve shifted upward and to- ward the left as concentration of silicic acid decreased. With acetic acid as acidifying agent, the gelation curve had the same tendency when concentra- tion of silicic acid changed, but with a strong acid, as hydrochloric...

Using acetic, sulfuric, hydrochloric, phosphoric and perchloric acid as acidifying agent, gelation time of monostlicic acid of different concentration at various pH was determined. All the log t--pH curves were of N-Shape. The pH value at the minimum point of each curve shifted upward and to- ward the left as concentration of silicic acid decreased. With acetic acid as acidifying agent, the gelation curve had the same tendency when concentra- tion of silicic acid changed, but with a strong acid, as hydrochloric or sulfuric, no such shift was observed at the maximum point. When log t of the minimum points of each set of gelation time curves were plotted against the corresponding log T_(?), straight lines were always obtained. However, the slope of the lines was about -3 instead of -2 as required by the theoretical equation. This is found to be due to the effect of the salt formed in the process of acidification of sodium monosilicate. When the concentration of sodium monosilicate used was kept constant and different amounts of a salt corresponding to the acid used as acidifying agent were added, the gelation curves obtained indicated that, in case when either hydrochloric acid or sulfuric acid was used as acidifying agent, the added salt had a little pro- motion effect at the maximum point but did not change the pH value. However, with the minimum points of all the curves and the maximum of that of acetic acid as acidifying agent, they all shifted downward and rightward. When log t was plotted against log T_s, straight line was also obtained, with a slope of about -1, indicating that getlation time of monosi- licic acid is inversely proportional to the first power of the concentration of salt. When the concentration of salt was kept constant and that of silicic acid varied, pH of the maximum points of all gelation curves no matter which acid was used as acidifying agent remained constant, while that of the minimum points changed but a little. And in all cases, when log t was plotted against log T_(?), a straight line was always obtained, the slope of which was -2, indicating experimental results were in complete accord with our theoretical expression. When the effect of added salt is included, the expression should be modified slightly and takes the following form: log t=log C'--(2+n')log T_A--log (1+β_1[H~+]+β_2[H~+]~2+β_3[H~+]~3)~2/β_2β_3 [H~+]~3 --log(β_1/β_2+[H~+]~2).

以乙酸、硫酸、盐酸、磷酸及高氯酸为胶凝剂,测定了不同浓度单硅酸在不同pH的胶凝时间,得到了一系列硅酸浓度与胶凝时间的曲线。曲线皆为N形。所有曲线的最低点和乙酸曲线的最高点的pH值,皆随硅酸浓度的减少而向左上方移动,但盐酸和硫酸曲线最高点pH值无明显变化。各组曲线最低点的log t和相应的log T_A昔为直綫关系,但直线斜率昔等于-3,而不是表达式中的-2。这是由於酸化过程所产生的盐的效应。在单硅酸浓度恒定时,加入不同量与所用胶凝剂相当的盐,从所得的胶凝曲綫表明,盐对发盐酸及硫酸为胶凝剂的曲线最高点略有促进作用,而不改变pH值。但所有曲线最低点及乙酸曲线最高点,昔随各种盐浓度的增加而向右下方移动。每组曲线最低点的log t和log T_s皆为直线关系,直线斜率在-1左右,表示盐浓度与胶凝时间的一次方成反此。在固定盐浓度,改变单硅酸浓度的实验中,所有盐酸、硫酸、硝酸、乙酸及磷酸的各套胶凝曲线的最高点pH值皆不改变,而最低点的pH值只微有不同,每组曲线的不论最低点或最高点,它们的log t和log T_A皆有直线关系,其直綫的斜率都在-2左右,和表达式的要求完全符合。故包括盐效...

以乙酸、硫酸、盐酸、磷酸及高氯酸为胶凝剂,测定了不同浓度单硅酸在不同pH的胶凝时间,得到了一系列硅酸浓度与胶凝时间的曲线。曲线皆为N形。所有曲线的最低点和乙酸曲线的最高点的pH值,皆随硅酸浓度的减少而向左上方移动,但盐酸和硫酸曲线最高点pH值无明显变化。各组曲线最低点的log t和相应的log T_A昔为直綫关系,但直线斜率昔等于-3,而不是表达式中的-2。这是由於酸化过程所产生的盐的效应。在单硅酸浓度恒定时,加入不同量与所用胶凝剂相当的盐,从所得的胶凝曲綫表明,盐对发盐酸及硫酸为胶凝剂的曲线最高点略有促进作用,而不改变pH值。但所有曲线最低点及乙酸曲线最高点,昔随各种盐浓度的增加而向右下方移动。每组曲线最低点的log t和log T_s皆为直线关系,直线斜率在-1左右,表示盐浓度与胶凝时间的一次方成反此。在固定盐浓度,改变单硅酸浓度的实验中,所有盐酸、硫酸、硝酸、乙酸及磷酸的各套胶凝曲线的最高点pH值皆不改变,而最低点的pH值只微有不同,每组曲线的不论最低点或最高点,它们的log t和log T_A皆有直线关系,其直綫的斜率都在-2左右,和表达式的要求完全符合。故包括盐效应的硅酸聚合而成凝胶的表达式改进为:

 
<< 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时间的内容
在知识搜索中查有关时间的内容
在数字搜索中查有关时间的内容
在概念知识元中查有关时间的内容
在学术趋势中查有关时间的内容
 
 

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