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
   三种二 的翻译结果: 查询用时:0.452秒
图标索引 在分类学科中查询
所有学科
更多类别查询

图标索引 历史查询
 

三种二
相关语句
  “三种二”译为未确定词的双语例句
     The paper analyses three types of two-dimensional optical code-division multiple access communication systems: T/S OCDMA、WDM+OCDMA、MW OCDMA, and compares their performance.
     分析了T/S OCDMA、WDM+OCDMA、MW OCDMA三种二维码OCDMA系统,并比较了其性能。
短句来源
     In this paper,a SU(2)×SU(2) chiral model on 2-dimensional random lattice is studiedby Monte Carlo simulation with 8×8,9×9 and 10×10 lattice volumes.
     本文对8×8,9×9和10×10三种二维随机格点阵的SU(2)×SU(2)手征模型进行了Monte Carlo(M-C)模拟,得到了链作用形式的内能和比热结果.
短句来源
     4. As for evaluation, this paper listed some criterions of evaluating the robust of the watermark algorithm, assessed the above three algorithms of 2D images,Compared them and Chose DCT-based watermark algorithm which perform best to digital museum system.
     4. 对数字水印算法给出了进行健壮性评估的几个衡量标准,并对已提出的三种二维彩色图像数字水印算法做了相应的测评实验,经过比较后选用了基于DCT域的数字水印算法作为在数字博物馆系统中进行批量二维彩色图像水印处理的算法。
短句来源
     When concentration of three compounds was 50 mg/kg, compoundⅠwas better than compoundⅡ in protecting maize from being injuried by acetochlor.
     研究表明:当这三种二氯乙酰基噁唑烷类化合物的浓度均为50mg/kg时,在施用乙草胺的土壤中,化合物Ⅰ的保护效果优于化合物Ⅱ。
短句来源
     Three heterobinuclear Complexes of Cu(Ⅱ) VO(Ⅱ),Cu(Ⅱ) Cr(Ⅲ) and Cu(Ⅱ) Fe(Ⅲ) with N. N′-bis(3-Carboxylsalicylidene)trimethlenediamine(TS) were synthesized. All these compounds were characterized by element analysis,IR.
     合成了三种二 ( 3 羧基水杨醛叉 )缩丙撑二胺 (TS)的Cu(Ⅱ ) VO(Ⅱ )、Cu(Ⅱ ) Cr(Ⅲ )、Cu(Ⅱ ) Fe(Ⅲ )异双核配合物 ,并用元素分析、摩尔电导、IR光谱、UV光谱室温磁矩对配合物的组成和结构进行了表征。
短句来源
更多       
  相似匹配句对
     3) T.
     ()T.
短句来源
     Three.
     .
短句来源
     Comparative study of performances of three kinds of colorimeters.
     种二氧化氯比色计测试性能的对比试验
短句来源
     COMPARISON OF GERMICIDAL EFFICACY OF THREE CHLORINE DIOXIDE SOLUTIONS
     种二氧化氯溶液杀菌效果的比较
短句来源
查询“三种二”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。
  three second
The solution is reduced to a system of three second-order differential equations each containing one unknown function.
      
The active North China block consists of three second-order blocks: Ordos, North China Plain, and East Shandong-Huanghai Sea blocks.
      
Secondly, based on the climate and landform, properties of snow cover and main features of snow hazard, the large zone of snow hazard can be classified into three second-level regions.
      
The electron andγ-quantum spectra in all of the three second order processes are discussed in detail for the decay of the isomeric level in Xe131.
      
We present the analytic value of the QED 8th-order contributions to the electron anomaly coming from three second-order self-mass or vertex insertions into the lowest-order graph.
      
更多          


Two simplified types of Supersonic three-hole lance are widely used for LD vessels of small size in our country. They are of a simple design and easy to make. In addition to the normal contraction-expension, the oxygen flow passage of the lance tip has a secondary contraction, where an effective throat is formed. As a result, the working characteristics of the lance show a noticeable deviation from the design. Formation of the secondary contraction, influence of this contraction on lance behavior and the measures...

Two simplified types of Supersonic three-hole lance are widely used for LD vessels of small size in our country. They are of a simple design and easy to make. In addition to the normal contraction-expension, the oxygen flow passage of the lance tip has a secondary contraction, where an effective throat is formed. As a result, the working characteristics of the lance show a noticeable deviation from the design. Formation of the secondary contraction, influence of this contraction on lance behavior and the measures for avoiding this influence are discussed. Three convinient methods for the calculation of the secondary contraction are described.

国内中小型顶吹转炉目前流行着两种简化的超音速三孔喷头,结构较简单.但氧气通道,除正常的收缩-扩张变化外,还有一个第二次收缩,并且往往在该处形成喷枪的实际喉道,使其工作性能明显偏离设计期望.本文讨论了二次收缩的形成,对喷枪性能的影响和避免这种影响的方法.着重介绍了三种二次收缩计算法,以供喷头设计和分析时应用.

In order to examine the effect of dipole moment of the nonelectrolyte on its salting-out ability, we have spectrophotcohemically determined the salting-out constants of o-, m-and p-dichlorobenzene (μ=2.25, 1.48 and 0 debye respectively) in aqueous solutions of LiCl, NaCl, KCl, CsCl, (CH_3)_4NCl, MgCl_2 CaCl_2 and SrCl_2 at 25℃. All the salts [excopt (CH_3)_4NCl] salt out the three isomeric dichlorobenzenes, and the salting-out order is: SrCl_2>CaCl_2>MgCl_2>NaCl>KCl>LiCl>CsCl>(CH_3)_4NCl. For the same salt the...

In order to examine the effect of dipole moment of the nonelectrolyte on its salting-out ability, we have spectrophotcohemically determined the salting-out constants of o-, m-and p-dichlorobenzene (μ=2.25, 1.48 and 0 debye respectively) in aqueous solutions of LiCl, NaCl, KCl, CsCl, (CH_3)_4NCl, MgCl_2 CaCl_2 and SrCl_2 at 25℃. All the salts [excopt (CH_3)_4NCl] salt out the three isomeric dichlorobenzenes, and the salting-out order is: SrCl_2>CaCl_2>MgCl_2>NaCl>KCl>LiCl>CsCl>(CH_3)_4NCl. For the same salt the values of k's of m- and p-dichlorobenzene are practically the same, while that of o-dichlorobenzene is a little bit lower. In the interaction between ion and the dipole, the greater the moment, the smaller should be the salting-out constant, hence the order of k should be o-

为考查非电解质的偶极矩对盐效应的作用,我们用分光光度计在25℃下测定邻、间和对二氯苯(偶极矩为2.25、1.48、和Odebye)在八种盐[氯化锂、氯化钠、氯化钾、氯化铯、四甲基氯化铵、氯化镁、氯化钙和氯化锶]水溶液中的盐析常数。除四甲基氯化铵盐溶液外,其余的盐对三种二氯苯都起到盐析的作用,盐析次序是: SrCl_2>CaCl_2>MgCl_2>NaCl>KCl>LiCl>CsCl>(CH_3)_4NCl对同一种盐来说,间位和对位的k值基本上相等,而邻位的则稍小些。就偶极矩和离子电荷的相互作用来说,k的大小次序应该是:邻位<间位<对位。本文的实验结果没有肯定这个作用,虽然邻位的k值显示有这种趋势的可能性。合理的解释似乎是:邻位和间位的偶极矩所引起的“盐溶”(盐析下降)作用为二氯苯分子的苯基的盐析作用所抵消。我们用五种离子半径,按照Debye-McAulay-Butler公式,计算邻二氯苯在四种氯化碱金属和三种氯化碱土金属盐水溶液中的盐析常数。又用两套离子水化半径和水化数,按照Conway-Desnoyers-Smith公式,计算邻、间和对二氯苯在四种氯化碱金属盐水溶液中的盐析常数。根据Conway...

为考查非电解质的偶极矩对盐效应的作用,我们用分光光度计在25℃下测定邻、间和对二氯苯(偶极矩为2.25、1.48、和Odebye)在八种盐[氯化锂、氯化钠、氯化钾、氯化铯、四甲基氯化铵、氯化镁、氯化钙和氯化锶]水溶液中的盐析常数。除四甲基氯化铵盐溶液外,其余的盐对三种二氯苯都起到盐析的作用,盐析次序是: SrCl_2>CaCl_2>MgCl_2>NaCl>KCl>LiCl>CsCl>(CH_3)_4NCl对同一种盐来说,间位和对位的k值基本上相等,而邻位的则稍小些。就偶极矩和离子电荷的相互作用来说,k的大小次序应该是:邻位<间位<对位。本文的实验结果没有肯定这个作用,虽然邻位的k值显示有这种趋势的可能性。合理的解释似乎是:邻位和间位的偶极矩所引起的“盐溶”(盐析下降)作用为二氯苯分子的苯基的盐析作用所抵消。我们用五种离子半径,按照Debye-McAulay-Butler公式,计算邻二氯苯在四种氯化碱金属和三种氯化碱土金属盐水溶液中的盐析常数。又用两套离子水化半径和水化数,按照Conway-Desnoyers-Smith公式,计算邻、间和对二氯苯在四种氯化碱金属盐水溶液中的盐析常数。根据Conway等公式算出的邻二氯苯的盐析常数比从Debye-McAulay-Butler公式算出的四种氯化碱金属盐对它的盐析常数确要好些,表明Conway等的理论把Debye-McAulay-Butler理论推进了一步。最后用MeDevit-Long公式计算邻二氯苯在四种氯化碱金属盐水溶液中的盐析常数,得出和实验值大小适合的次序。

In a previous paper (1) the isolation of triptolide, tripdiolide and triptonolide from Tripterygium wilfordii Hook. f. was reported. This paper reports the isolation of three other diterpenoid-lactones: (1) triptophenolide, C_(20)H_(24)O_3, mp 232~233℃; (2) triptophenolide methyl ether, C_(21)H_(26)O_3, mp 152~154℃, and (3) neotriptophenolide, C_(21)H_(26)O_4, mp 189~191℃. Their structures are assigned as Ⅴ, Ⅵ and Ⅶ, respectively, by spectroscopic analysis (UV, IR, MS, ~1HNMR and ~(13)CNMR) and preparation of...

In a previous paper (1) the isolation of triptolide, tripdiolide and triptonolide from Tripterygium wilfordii Hook. f. was reported. This paper reports the isolation of three other diterpenoid-lactones: (1) triptophenolide, C_(20)H_(24)O_3, mp 232~233℃; (2) triptophenolide methyl ether, C_(21)H_(26)O_3, mp 152~154℃, and (3) neotriptophenolide, C_(21)H_(26)O_4, mp 189~191℃. Their structures are assigned as Ⅴ, Ⅵ and Ⅶ, respectively, by spectroscopic analysis (UV, IR, MS, ~1HNMR and ~(13)CNMR) and preparation of their derivatives. It has beert shown that Ⅵ and Ⅶ are new diterpenoid compounds.

从福建产雷公藤(Tripterygium wilfordii Hook.f.)的根皮中分离到三种二萜内酯。(1)雷酚内酯(triptophenolide),C_(20)H_(24)O_3,熔点232~233℃。(2)雷酚内酯甲醚(triptophenolide methyl ether),C_(21)H_(26)O_3,熔点152~154℃。(3)雷酚新内酯(neotriptophenolide),C_(21)H_(26)O_4,熔点189~191℃。根据理化性质及UV、IR、~1HNMR、~(13)CNMR、MS等光谱数据,推测化学结构分别为Ⅴ、Ⅵ及Ⅶ。Ⅵ与Ⅶ是二种新的二萜内酯化合物。

 
<< 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三种二的内容
在知识搜索中查有关三种二的内容
在数字搜索中查有关三种二的内容
在概念知识元中查有关三种二的内容
在学术趋势中查有关三种二的内容
 
 

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