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基本骨架
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  basic framework
     On the basis of IR and LRS spectrums information it is proven that there are VO(SO 4) 2- and S 2O 7 2- in the catalysts whose basic framework is V 2O 5.Finally, an active micro area model is proposed. The structure of K 2VO 3SO 4SO 3 is derived to be the basic unit of the surface active micro area.
     催化剂以V2O5为基本骨架,形成了VO(SO4)2-及S2O72-的配位形式,组成了K2VO3SO4SO3n型的表面活性微区
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     City traffic network is a basic framework of an urban spatial form,and the quantative study of the traffic \{network\} is the important aspect of the controllable parameters of an urban spatial form.
     城市交通网络是城市空间形态的基本骨架 ,交通网络的定量研究是对城市空间形态可控参数研究的重要方面。
短句来源
     City traffic network is basic framework of urban spatial form, ration researching traffic network is important aspect of controllable parameter of urban spatial form.
     城市交通网络是城市空间形态的基本骨架,交通网络的定量研究是对城市空间形态可控参数研究的重要方面.
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     The Basic Framework and Elongation of Amplifiers
     放大器的基本骨架及其延伸
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     But the basic framework structure of clinoptilolites was not destroyed by the phosphorus modification, still maintaining the monoclinic system.
     但是 ,磷改性并未破坏斜发沸石的基本骨架结构 ,仍属于斜发沸石单斜晶系。
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  basic skeleton
     The designing idea of Top Basic Skeleton(TBS) assembly model was introduced,and the feasibility of concurrent design to be carried out on Pro/E software platform was analyzed.
     介绍了顶层基本骨架(Top Basic Skeleton,TBS)装配模型的设计思想,分析了在Pro/E软件平台上进行并行设计的可行性。
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     Aim To synthesize compounds with coumarins basic skeleton.
     目的合成香豆素基本骨架化合物。
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     Product Variant Design Based on the Top Basic Skeleton Mode
     基于顶层基本骨架TBS模型的变型设计
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     Synthesis of compounds with coumarin basic skeleton by microwave irradiation assisted method
     香豆素类基本骨架化合物的微波辐射辅助合成
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     The ~(13)C-NMR spectral data of eighteen natural coumarins (Ⅱ-ⅪⅩ) belonging to four basic skeleton types and some substituent effects are presented and discussed.
     本文报道了四种基本骨架类型的十八种天然产香豆素(Ⅱ~ⅩⅨ)的~(13)C NMR光谱数据。
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  basic skeletons
     Secondly, after the basic skeletons and reference skeletons are identified based on the width information of handwriting, the strokes segments are obtained by connecting and tracing on the basic skeletons.
     其次由手写体的宽度信息进一步得到两类骨架:基本骨架与参考骨架; 再通过基本骨架的跟踪连接得到笔划段。
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  “基本骨架”译为未确定词的双语例句
     Their determined formulas are K7H2LnNb6V6O39. xH2O, K9HLnMo5V7O39. xH2O(Ln =La, Ce, Pr, Nd) by element analysis, thermo -gravimetric analysis, IR, Raman, UV, ESR spectra. They have Keggin Structure.
     通过元素分析、热重分析、IR、Raman、UV、ESR光谱的测试,确定其分子通式分别为:K7H2LnMo6V6O39·xH2O,K9HLnMo5V7O39.xH2O(Ln=La、Ce、Pr、Nd),它们都具有Keggin结构的基本骨架
短句来源
     It is a complex salt with the molecular formula C_(14)H_6O_(10)SbNa_3·H_2O which is formed through the coordination of four oxygen atoms and a water molecule to each antimony atom. The latter serves as a central atom in the complex anion.
     组成式C_(14)H_6O_(10)SbNa_3·H_2O,基本骨架是每个锑原子与四个氧原子和一分子水形成配位数为5的锑氧络合中心离子。
短句来源
     of safety of Ge-132. Studies on the metabolic fate of Ge-132show that its fundamental famework GeCH2CH2COOH will not change after oral administration to rat, i. e. Ge-132 can not be decomposed into GeO2 or other inorganogermanium compunds.
     对大鼠口服Ge-132代谢产物的研究表明,Ge-132的基本骨架GeCH2CH2COOH没有变化,即它不会降解为GeO2或其他的无机锗化合物。
短句来源
     the relationship of the wave peaks and the structural characteristics between the Raman spectra and IR spectra was analyzed, the attribution of the functional groups in the structural characteristics of ursolic acid was basically defined, providing two basic spectra areas (area A:1 386, 1 370, 1 363 cm -1 , and area B: 1 304 , 1 269, 1 237 cm -1 ), which identify the matter of ursolic acid;
     解析了熊果酸的Raman光谱和IR光谱与其结构特征的关系 ,确定了熊果酸的Raman光谱和IR光谱的结构特征和官能团的归属 ,给出了熊果酸的两个基本骨架特征区域 (A区 :1386 ,1370 ,136 3cm- 1 ,B区 :130 4 ,12 6 9,12 37cm- 1 ) ;
短句来源
     The results indicated that the Keggin structure was intact in H 3PW 12 O 40 /TiO 2 catalyst, and the loading of H 3PW 12 O 40 was 22.29%, the average micropore and mesopore diameter of H 3PW 12 O 40 /TiO 2 was 0.61 and 3.06 nm, respectively, and the particle size was ca.
     结果表明 ,催化剂中活性组分H3 PW12 O40 的基本骨架结构未发生改变 ,H3 PW12 O40 的担载量为 2 2 2 9% ,催化剂平均粒径为 4 0nm ,具有双孔结构 ,其平均微孔和介孔孔径分别为 0 6 1和 3 0 6nm . 考察了催化剂可见光光催化降解 6种水溶性染料的性能 .
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  basic framework
The basic framework of land system innovations of small towns is put forward finally.
      
Meanwhile, we have also worked out a basic framework for the lithospheric dynamics of the Northwest of China.
      
Taking the theory of mixture as a basic framework, the paper merges the primes off rational mechanics irreversible thermodynamics and soil mechanics into an organic system and proposes an axiomatics of geomechanics.
      
First, we present a basic framework of image quality and dose in the context of a cost-benefit trade-off, with the development of the concept of imaging dose efficiency.
      
The basic framework of describing the cationic behavior in olivine-type mineral is worked out, although the result is preliminary: each of the determined parameters is not accurate enough to enable us to make a reliable prediction.
      
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  basic skeleton
When the drying temperature exceeded 180°C, both backbone basic skeleton and side chain portions were also damaged heavily and gave off NH3 in addition to the damage of the cross-linking portions.
      
Conformational search results show the ring framework of the basic skeleton was hard, as the organic chemists presumed from experience.
      
From the throughput of the transitions in AS2 using the basic skeleton BS we compute the rat es of the transitions 1 and 2.
      
However, the algorithm we provide below is considerably simpler, and still retains the basic skeleton of these more sophisticated algorithms.
      
In this section we provide the basic skeleton for LOG.
      
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  basic skeletons
The combination of two or more key fragmentograms can determine, in general with good reliability, the basic skeletons.
      
The basic skeleton of the region R is a union of basic skeletons of regions R1 and R2.
      


Starting from cyclopentadiene, both dl-15-methyl-prostaglandin (XV) F_(2a) and its 15(R, S)-16-methyl ether (X_b) have been synthesized via a ten-step process. The key reaotion steps involved in this synthesis were the use of the 15-methyl-oontaining aluminium compound{IV_b)as a reagent to prepare VI_b(R_3=H), and the transformation of the tetraol monomethyl ether (XI_b) (R_3=H) to the known diol laotone (XII) in the presence of a platinum catalyst through seleotive oxidation by molecular oxygen with simultaneous...

Starting from cyclopentadiene, both dl-15-methyl-prostaglandin (XV) F_(2a) and its 15(R, S)-16-methyl ether (X_b) have been synthesized via a ten-step process. The key reaotion steps involved in this synthesis were the use of the 15-methyl-oontaining aluminium compound{IV_b)as a reagent to prepare VI_b(R_3=H), and the transformation of the tetraol monomethyl ether (XI_b) (R_3=H) to the known diol laotone (XII) in the presence of a platinum catalyst through seleotive oxidation by molecular oxygen with simultaneous demethylation. The reactions of various aluminium reagents (IV_c、IV_e)withV(R_3=H) were studied. Attempted demethylations of VI_b(R_3= G_6H_5CO—) with BF_3·(C_2H_5)_2O at-78° and with boron trifuoride etherats-acetic anhydride at —18° did not give the expected results.

天然前列腺素的15-位羟基由于在体内迅速地被前列腺素15-羟基脱氢酶氧化成酮基而失去活性,后来发现若在15位引入甲基则可提高活性,并且作用时间延长. 合成15-甲基前列腺素F_(2a)可用前列腺素F_(2a)为原料经四步反应来完成,也可利用已具有15-酮基的中间体再引入甲基来达到目的.这两种方法均是从已具有前列腺素基本骨架的化合物I或II再引入15-甲基的.我们现在报导一种新的从环戊二烯经十步的合成方法,关键在于将15-位的甲基先引入于接在12位的八碳侧链之中,这样可以省去从前列腺素F_(2a)引进15-甲基的所有反应.

Sodium tanshinone Ⅱ-A sulfonate (danshen-201) is a new water-soluble derivative of tanshinone Ⅱ-A which was isolated from Salvia miltiorrhiza. In coronary patients danshen-201 ameliorated the anginal pain and the feeling of chest tightness, and improved the ischemic alterations in the electrocardiogram. This paper reports its effects on hypoxia in mice, hemodynamic studies in dogs and its metabolism in mice.In mice, an intraperitoneal injection of 200 mg/kg prolonged significantly the surviral time under hypoxia....

Sodium tanshinone Ⅱ-A sulfonate (danshen-201) is a new water-soluble derivative of tanshinone Ⅱ-A which was isolated from Salvia miltiorrhiza. In coronary patients danshen-201 ameliorated the anginal pain and the feeling of chest tightness, and improved the ischemic alterations in the electrocardiogram. This paper reports its effects on hypoxia in mice, hemodynamic studies in dogs and its metabolism in mice.In mice, an intraperitoneal injection of 200 mg/kg prolonged significantly the surviral time under hypoxia. The-rate of O_2 consumption was retarded than in control mice. The amount of-residual O_2 at death was less than in controls (p<0.05). When the ambient O_2 content was lowered to 6%, the lactic acid concentrations in heart and brain of control mice increased markedly, whereas those of treated (danshen-201 was given 1/2 hr previously) mice did not increase.In anesthetized dogs an intravenous injection of 20 mg/kg brought about mild elevation of blood pressure, cardiac output and work of the left ventricle. The changes in heart rate and peripheral vascular resistance, were insignificant.~(35)S-labeled danshen-201 was administered intravenously to mice. At 2 minutes the radioactivity in blood was found to be 75843 cpm/0.1 ml, lowered to 3785 cpm at 90 minutes. The average half-life was about 18 minutes. After 1 hr, the radioactivities were high in liver, lung and intestine, then came to heart and stomach, They all tended to decrease after 6 and 24 hrs. The radioactivities of the contents An the intestines ranked first for all times The amount was also considerable in gall-bladder. The excretion rates in urine and feces were 10.2% and 32%, resp., within 24 hrs; 4.5% and 24.1%, resp., on the 2nd day; and 1.8% and 19.6%, resp., on the 3rd day In the urine, danshen-201 per se as well as a metabolite were identified by both nonradioactive and radioactive thin-layer chromatography and autoradiography. This metabolite was found to have a basic-skeleton similar to the prototype of danshen-201 and seemed to have certain polar groups added.

丹参酮Ⅱ-A磺酸钠(丹参201)是丹参酮Ⅱ-A的新水溶性衍生物。临床试用中对冠心病心绞痛和胸闷的症状有一定疗效,并能改善缺血性心电图。本文进行了丹参201对小鼠缺氧、狗心脏血流动力作用和小鼠体内代谢的研究。 腹腔注射200 mg/kg,可显著的延长小鼠在缺氧情况下的存活时间;氧耗速度较对照组稍减慢;其死亡时余存氧含量亦较对照组为低(P<0.05)。小鼠缺氧达到氧含量为6%时,心脏和脑组织中乳酸含量较正常组显著增加,而给丹参201后半小时再进行缺氧实验,组织中乳酸含量不增加,与正常组差异不显著。 麻醉狗,一次静脉推注20 mg/kg,出现轻度血压升高,心输出量和左心室作功量稍有增加,心率和外周血管阻力的变化不显著。 小鼠静注~(35)S-丹参201后2分钟血中放射活性为75843 cpm/0.1 ml,90分钟已降至3785 cpm/0.1 ml。注后1小时,以肝、肺和肠中放射活性为高;肾、脾、心和胃次之。6和24小时均趋减少。肠内容物中的放射活性在不同时间内均占首位。胆囊中亦较多。24小时内尿和粪中排泄率分别为10.2%和32.0%;24~48小时内分别为4.5%和24.1%;48~72小时内分别为1.8%和...

丹参酮Ⅱ-A磺酸钠(丹参201)是丹参酮Ⅱ-A的新水溶性衍生物。临床试用中对冠心病心绞痛和胸闷的症状有一定疗效,并能改善缺血性心电图。本文进行了丹参201对小鼠缺氧、狗心脏血流动力作用和小鼠体内代谢的研究。 腹腔注射200 mg/kg,可显著的延长小鼠在缺氧情况下的存活时间;氧耗速度较对照组稍减慢;其死亡时余存氧含量亦较对照组为低(P<0.05)。小鼠缺氧达到氧含量为6%时,心脏和脑组织中乳酸含量较正常组显著增加,而给丹参201后半小时再进行缺氧实验,组织中乳酸含量不增加,与正常组差异不显著。 麻醉狗,一次静脉推注20 mg/kg,出现轻度血压升高,心输出量和左心室作功量稍有增加,心率和外周血管阻力的变化不显著。 小鼠静注~(35)S-丹参201后2分钟血中放射活性为75843 cpm/0.1 ml,90分钟已降至3785 cpm/0.1 ml。注后1小时,以肝、肺和肠中放射活性为高;肾、脾、心和胃次之。6和24小时均趋减少。肠内容物中的放射活性在不同时间内均占首位。胆囊中亦较多。24小时内尿和粪中排泄率分别为10.2%和32.0%;24~48小时内分别为4.5%和24.1%;48~72小时内分别为1.8%和19.6%。 经非放射性和放射性薄层层析及放射自显影证明,由尿中排出的代谢物,一个为丹参201的原型,另一个为代谢产物,其基本骨架与原型相似,看来是增加了某些极性基团。

Sodium antimony gallate (trisodium digallate-(3, 4)-antimonite, Sb-273) is an effective schistosomicide. Its structure has been studied through a series of chemical synthesis, preparation of derivatives, degradations and IR analyses, and ultimately determined by X-ray diffraction. It is a complex salt with the molecular formula C_(14)H_6O_(10)SbNa_3·H_2O which is formed through the coordination of four oxygen atoms and a water molecule to each antimony atom. The latter serves as a central atom in the complex...

Sodium antimony gallate (trisodium digallate-(3, 4)-antimonite, Sb-273) is an effective schistosomicide. Its structure has been studied through a series of chemical synthesis, preparation of derivatives, degradations and IR analyses, and ultimately determined by X-ray diffraction. It is a complex salt with the molecular formula C_(14)H_6O_(10)SbNa_3·H_2O which is formed through the coordination of four oxygen atoms and a water molecule to each antimony atom. The latter serves as a central atom in the complex anion.

没食子酸锑钠[二没食子酸-(3,4)-亚锑酸三钠,简称锑-273]是一种有效的抗血吸虫病药物。本文用衍生物合成、降解反应、红外光谱、核磁共振谱及X-射线衍射晶体分析法研究了它的化学结构。组成式C_(14)H_6O_(10)SbNa_3·H_2O,基本骨架是每个锑原子与四个氧原子和一分子水形成配位数为5的锑氧络合中心离子。

 
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