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cases that
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  案例说明
     According to this model, there are four different cases that are explained how to practice in reality.
     按照这种模式,列举四个不同案例说明在实践中如何操作。
短句来源
     Considering the function of science history studies in science education,we have found through our analysis of some cases that for a long time the purpose of education determined the educational function of science history studies which can be called the history of science in education.
     关于科学史在科学教育中的功能问题 ,一些案例说明 ,长期以来 ,实际上是教育目的规定着科学史的教育作用 ,将这种现象可称为教育中的科学史。
短句来源
     This paper chooses a new logistic premise from the aspect of venture option nature and management value, discusses the connection of venture real option and venture fi-nancial option, and points forward the management value which option thought supervises venture invest decision-making and securities design. Furthermore, this paper studies cases that account for how use venture option maximum venture value.
     本文从创业期权的特性与管理价值着手,探讨创业实物期权与金融期权的关系,指出以期权思维指导创业企业投资决策及证券设计的管理价值,进而通过案例说明如何使用创业期权以最大化创业价值。
  “cases that”译为未确定词的双语例句
     Methods: early pregnancy≤7 weeks,abortion choice of termination of pregnancy again the same patient who terminates abortion by taking drug is analyzed retrospectively,there are 140 cases of two pregnancy abortion interval which is less than 3 months,382 cases that the interval >3 months,comparison has been made between the two groups of the outcome of drug abortion.
     方法对早期妊娠≤7周,选择再次药物流产终止妊娠同一患者,进行回顾性分析,两次妊娠药物流产间隔时间≤3个月者140例,间隔时间>3个月者382例,比较两组再次药物流产的结局。
短句来源
     The middle age and senile patients belong to the risk group,and the cases that the age was less than 40 years old accounted for only 4.14%.
     中老年是高发年龄,≤40岁青年仅占4.14%;
短句来源
     Recurrence and distant metastasis occurred in all cases with positive HS-AFP and GGT-Ⅱ, whereas after surgery the cases that were negative for both HS-AFP and GGT-Ⅱ accounted for only 9.5%.
     术后HS-AFP和GGT-Ⅱ二者均为阳性的患者则均有复发转移。 而术后二者均为阴性组患者复发转移率仅为9.5%。
短句来源
     Methods Retrospective study was done on revision of cementless total hip replacement in 68 cases that were admitted from May 2001 to May 2006.There were 47 males and 21 females,with age ranging from 35 to 77 years(mean 56.7 years).
     方法自2001年5月至2006年5月对68例采用生物固定全髋关节翻修术,男47例,女21例。 年龄35-77岁,平均56.7岁。
短句来源
     In the cases that the initial network states are not strictly equal to those of the practical systems,the approximation ability of this network to nonlinear system is discussed.
     在网络初始状态和实际系统初始状态不严格相等的情况下,探讨该网络对非线性系统的逼近能力.
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     Cases
     案例集粹
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     Cases
     案例集萃
短句来源
     Liverfunctiontestsreturnedtonormalexceptthatserumglobulinremainedelevatedin2cases.
     肝功能复查,除2例球蛋白升高外,均转为正常。
短句来源
     (2) cases that are simple;
     (2)案情简单、证据充分的案件;
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  cases that
Of the 62 cases that were followed up, 17 cases had metastasis or recurrence and the 5-year survival rate was (66.51 ± 17.06)%.
      
The dependences for a number of limiting cases that are satisfactorily consistent with published experimental data are estimated.
      
Several approaches to the solution of the problem are considered, and cases that admit exact self-similar solutions, which are solutions of the second kind, are identified.
      
It is found in both cases that the effect of evaporation coefficient is most significant at the initial instant of unsteady-state process of evaporation and of condensation growth of the droplet.
      
This makes it possible, in particular, to prove in certain cases that the group E(K∞) is finitely generated without assuming that the groups E(K0) and III(K0/K0, E) are finite.
      
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The present paper treats the compression of a rectangular block between two parallel rough plates as a problem in the theory of plane strain for perfectly plastic-rigid materials.At first, the plastic-rigid theory of plane strain was outlined, then, the solution to the present problem is briefly surveyed. In section 4, the case that is left out in the present literature, viz. when the width-height ratio lies between 1 and 3.64 for partially rough plates is solved. In this treatment, the coefficient of...

The present paper treats the compression of a rectangular block between two parallel rough plates as a problem in the theory of plane strain for perfectly plastic-rigid materials.At first, the plastic-rigid theory of plane strain was outlined, then, the solution to the present problem is briefly surveyed. In section 4, the case that is left out in the present literature, viz. when the width-height ratio lies between 1 and 3.64 for partially rough plates is solved. In this treatment, the coefficient of friction ν is considered as constant along the contact surfaces. For eachμ, a critical value of the ratio w0/h is given. When w/hcase, there is no slip along the contact surfaces and the solution is the same as if the contact were perfectly rough.When w0/hcase, however, a new parameter connected with μ should be added and the semi-inverse type of construction becomes very complicated.For w/h, the construction is again straightforward. The graphical construction used is described in detail in Appendix Ⅱ.The results of the solution are expressed in terms of Figs. 6 and 7, which show respectively: the average pressure on the plates vs. the width-height ratio for different values of μ and the pressure distributions along the plates. Although the construction for the intermediate case, w0/hcase of constant μ is given in Appendix Ⅱ.

本文将平行刚性压板间的塑性流动问题作为理想刚塑性的平面应变问题处理;先简单的复习理想刚塑性的平面应变问题,然后对本问题已做的部分作简短的介绍,再处理了现在还未解决的情形,那就是:当1

There was described a condition for the action of hydrogen peroxide on some mercapto-pyrimidines. 2-Ethylmercapto-pyrimidines [Ⅰ, X=Cl, OCH_3, OC_2H_5, NH_2, NHCH_3 or N(C_2H_5)_2] reacted with hydrogen peroxide in ethanol to form 2-hydroxy-pyrimidines [Ⅱ, X=Cl, OCH_3, OC_2H_5, NH_2, NHCH_3 or N(C_2H_5)_2]. The reaction is represented as follows: In case that X in formula Ⅰ was C_2H_5S, it was possible to prepare uracil (Ⅱ, X=OH).By means of the above mentioned new reaction, the following pyrimidine derivatives...

There was described a condition for the action of hydrogen peroxide on some mercapto-pyrimidines. 2-Ethylmercapto-pyrimidines [Ⅰ, X=Cl, OCH_3, OC_2H_5, NH_2, NHCH_3 or N(C_2H_5)_2] reacted with hydrogen peroxide in ethanol to form 2-hydroxy-pyrimidines [Ⅱ, X=Cl, OCH_3, OC_2H_5, NH_2, NHCH_3 or N(C_2H_5)_2]. The reaction is represented as follows: In case that X in formula Ⅰ was C_2H_5S, it was possible to prepare uracil (Ⅱ, X=OH).By means of the above mentioned new reaction, the following pyrimidine derivatives were prepared:2-Hydroxy-4-X-pyrimidine (Compound Ⅱ)Nature of X Empirical Formula m.p.CI C_4H_3ON_2Cl 152-154°OCH_3 C_5H_6O_2N_2 132-134°OC_2H_5 C_6H_8O_2N_2 168-170°OH C_4H_4O_2N_2 320°(with becomposition)NH_2 C_4H_5ON_3 290-292°(with decomposition; needles transformed to cubes at 190°)X=NHCH_3 C_5H_7ON_3 268°X=N(C_2H_5)_2 C_8H_(13)ON_3 280-281°The mechanism of the action of hydrogen peroxide on 2-ethylmercapto-4-chloro-pyrimidine was considered as follows: 2-Ethylmercapto-4-chloro-pyrimidine reacted with hydrogen peroxide to form 2-ethylsulphonyl-4-chloro-pyrimidine, which was then further oxidized by hydrogen peroxide to yield 2-hydroxy-4-chloro-pyrimidine and ethyl sulphonic acid. For supporting this interpretation, the authors attempted to oxidize with hydrogen peroxide 2-ethylsulphonyl-4-chloropyrimidine, which was prepared by Sprague and Johnson's method.2-Ethylmercapto-6-alkoxy-pyrimidine (Ⅰ, X=OCH_3 or OC_2H_5) reacted with hydrogen peroxide in ethanol to form 2-hydroxy-4-alkoxy-pyrimidine (Ⅱ, X=OCH_3 or OC_2H_5) in a lower yield and uracil in a higher yield. This phenomenon was interpreted as follows: 2-ethylmercapto-6-alkoxy-pyrimidine (Ⅰ, X= OCH_3 or OC_2H_5) reacted with hydrogen peroxide to form 2-hydroxy-4-alkoxy-pyrimidine (Ⅱ, X=OCH_3 or OC_2H_5) and ethyl sulphonic acid, the latter acting as a catalyst, which would accelerate the conversion of 2-hydroxy-4-alkoxy-pyrimidine (Ⅱ,X=OCH_3 or OC_2H_5) into uracil (Ⅱ, X=OH). The change is represented as follows:2-Hydroxy-4-chloro-pyrimidine was reduced to 2-hydroxy-pyrimidine, m.p. 178-180° or m.p. 180-182°, by (a) the action of zinc dust in ethanol in presence of ammonium hydroxide and (b) by the catalytic reduction in presence of palladium-charcoal in ethanol.

1.2-乙硫醇基嘧啶[Ⅲ,X=Cl,OCH_3,OC_2H_5,NH_2,NHCH_3或N(C_2H_5)_2]与過氧化氫在乙醇溶液中作用,形成2-羥基嘧啶[Ⅳ,X=Cl,OCH_3,OC_2H_5,NH_2, NHCH_3或N(C_2H_5)_2]。 2.以過氧化氫氧化2-乙硫醇基+氯代嘧啶形成2-羥基-4-氯代嘧啶的反應歷程,作者建議如下:首先過氧化氫氧化2-乙硫醇基-4-氯代嘧啶為2-乙磺醯基-4-氯代嘧啶,再以過氧化氫進一步氧化得到2-羥基-4-氯代嘧啶。 3.2-乙硫醇基-4-烷氧基嘧啶与過氧化氫作用,形成產量較低的2-羥基-4-烷氧基嘧啶,和產量較高的2,4-羥基嘧啶。 4.2-羥基-4-氯代嘧啶(1)在乙醇溶液中,有氫氧化銨存在下和鋅粉作用及(2)在乙醇溶液中,以鈀-碳為催化劑,進行催速氫化,均還原為2-羥基嘧啶。

Using pure benzene as raw material for the evaluation of catalytic activity of MoS_2, the study of the poisoning effect of pyridine and the "nitrogen compounds" separated from diesel fraction of Shale oil on MoS_2 catalyst was carried out. The experiments show that when the MoS_2 catalyst is previously treated by pyridine or "nitrogen compounds" under high pressure at lower temperature(300℃), it loses its activity for the hydrogenation of benzene ring; while at higher temperature (420℃), in such case that...

Using pure benzene as raw material for the evaluation of catalytic activity of MoS_2, the study of the poisoning effect of pyridine and the "nitrogen compounds" separated from diesel fraction of Shale oil on MoS_2 catalyst was carried out. The experiments show that when the MoS_2 catalyst is previously treated by pyridine or "nitrogen compounds" under high pressure at lower temperature(300℃), it loses its activity for the hydrogenation of benzene ring; while at higher temperature (420℃), in such case that the nitrogen compounds can be completely hydrogenalyzed, therefore, the hydrogenating activity of MoS_2 catalyst remains unchanged after nitrogen compounds treatment, however, its isomerization and cracking activities are somewhat poisoned. Among these the isomerization activity is more sensitive towards: nitrogen compounds. The results also show that the pgisoning effect of pyridine is analogohs to that of the "nitrogen compounds" of diesel fraction of shale oil.

以苯作为評价MoS_2催化剂活性的原料,試驗了吡啶及頁岩油輕油“含氮化合物”对催化剂活性的影响。試驗証明在較低的溫度下(300°)經吡啶或“含氮化合物”的加氫处理后,催化剂完全失去了对苯加氫的活性;但在較高溫度下(420°以上),由于保証了含氮化合物的加氫裂解,催化剂仍保有相当的活性,其中除氫化性能几乎不受影响以外,影响最大的为异构性能,次之才为环烷的裂化性能。吡啶与含氮化合物的“毒性”,在性能上極其相近。

 
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