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     The calculated results indicated that the formation energies of 〈100〉{010} and 〈100〉{011} edge dislocations are higher than those of 1/2〈111〉{011} and 1/2〈111〉{112} edge dislocations. This shows that the formation of 1/2 〈111〉 edge dislocation is easier than that of 〈100〉 edge dislocation.
     计算结果表明:〈100〉{010}和〈100〉{011}刃型位错的形成能比1/2〈111〉{011}和1/2〈111〉{112}刃型位错的要高,这表明〈100〉刃型位错比1/2〈111〉刃型位错更难形成.
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     In 2000,Torriani H H.constructed a function f∈H~α(0<α<1),but f■BV.This shows that the Hlder continuity of a function does not guarantee it is of bounded variation.
     2000年,Torriani H.H. 构造了一个函数f∈Hα(0<α<1),但f BV,这表明函数H lder连续性不能保证其有界变差性.
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     This shows that the determiation of elements with different volatility by ETV-ICP-AES with PTFE as matrix modifier is probable.
     这表明,以PTFE为基体改进剂ETV-ICP-AES测定不同挥发性元素Ti、Ni和Pb是可能的。
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     This shows that DFT method can provide good results using only a comparatively less amount of calculation and a modest size of basis sets. For some special case like that of (CH_3SO_2), the predicted result is even better than values provided by the more sophisticated CCSD(T)/CBS.
     这表明,采用密度泛函方法只需要很少的计算量和中等大小的基组就能得到很好的结果,对于某些特殊例子(如CH3SO2),其预测结果甚至好于高水平的CCSD(T)/CBS方法.
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     This shows that it is completely feasible to study the character and structure of the optimal strategy for the model ε(≥0) by the elementary method.
     这表明用初等方法来研究该模型ε(≥0)最优策略的性质和结构是完全可行的。
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  “这表明”译为未确定词的双语例句
     e. ,s2=10-4×9(U10β-0.4348+1),which denotes that the wave age changes the slope of the mean square slope increasing with wind speed in the form a negative exponent.
     基于以上结论,建立了s2同时随风速和波龄变化的关系:s2=10-4×9(U10β-0.4348+1),这表明β以负幂指数的形式改变了s2随风速线性增长的斜率。
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     This results indicated that tomato prosystemin gene transformed into rice could not regulate the expression of PinⅡ gene in transgenic rice.
     这表明,prosystemin基因转入水稻并不能有效调节转基因水稻PinⅡ基因的表达量。
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     The result indicates that 20 mg/kg EMP can increase the activity of anti-oxidation enzyme,improve free radical metabolism and protect ultrastructure of myocardium from oxidative stress in aging mice.
     这表明20 mg/kg的EMP具有增强衰老小鼠心肌抗氧化酶活性,改善心肌自由基代谢,保护心肌细胞超微结构的作用。
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     All these indicated that ZrO2 and Nb2O5 promoters efficiently improved the performance of the Au/α-Fe2O3 catalysts.
     这表明ZrO2和Nb2O5双助剂的添加有效地改善了Au/α-Fe2O3催化剂的性能。
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     The results indicated that we could screen out new material of black kernel waxy wheat with the hybridization between whole waxy wheat and black kernel wheat.
     这表明利用全糯小麦与黑粒小麦杂交能筛选出黑粒糯小麦新材料。
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     It seems to show that CAMP concentration required for the syntheses of enzyme system utilized galactose in E.
     似乎表明,在E.
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     , L.casei Zhang showed a strong ability of removing 49.61% of cholesterol from the growth media.
     一结果表明,L.
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     W.
     是W.
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  this shows
This shows the largeness of the core in a sense other than that defined by Sharky for finite cases.
      
This shows that RNAs produced in the cytoplasm by viral RNA-dependent RNA polymerase are able to avoid the proposed mechanism.
      
This shows that they are highly effective for solving problems of flow over an airfoil of any, including arbitrarily small, thickness.
      
This shows that the Janet division is optimal for the calculation of multiplicative variables and for the fast search of a divisor.
      
This shows that the organomagnesium synthesis does allow linking of two bulky substituents to the germanium atom.
      
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A newly designed chart—fronal θ_(se) chart is presented as a tool for frontalanalysis.This tool is applied to the analysis of the upper boundary of cold-wave fronts in China for two cases.It is found that the θ_(se) over the upperfrontal boundary is far from uniform and the θ_(se) value of maximum changesrather considerably with time.By means of this the authors try to demonstratethat the frontal surface is not a simple material surface always consisting ofsame set of air particles,but rather a structure with...

A newly designed chart—fronal θ_(se) chart is presented as a tool for frontalanalysis.This tool is applied to the analysis of the upper boundary of cold-wave fronts in China for two cases.It is found that the θ_(se) over the upperfrontal boundary is far from uniform and the θ_(se) value of maximum changesrather considerably with time.By means of this the authors try to demonstratethat the frontal surface is not a simple material surface always consisting ofsame set of air particles,but rather a structure with its own mechanism ofmetabolism,subjecting continuously frontogenetic process.The significance ofthis findings for frontal analysis and numerical forecasting is also discussed.

本文提出了锋面假相当位温(θ_(se))图作为分析锋面的一种工具.根据个案例子的锋面上界 θ_(se)图分析,发现锋上 θ_(se)还不是均一的,并且它的极值随时间有着相当可观的变化.本文讨论了这结果,指出这表明锋面不是一个简单地总是由同一物质总组成的物质面,而是在锋前锋后连续不断的经历着锋生锋消过程,有着它自己的新陈代谢的一种构造.最后讨论了这些事实在锋面分析和数值预报上的意义.

A new amino acid has been isolated from seeds of Cucurbita moschata Duch. The compound, having physical and chemical properties different from those of known amino acids, is provisionally named cucurbitine. Pharmacological examinations revealed that this compound was active against Schistosomiasis japonica.

1.从治疗血吸虫病中药中国南瓜子(Cucurbita moschata Duch.),经化学提取得一种新化合物,其物理及化学性质与已知的氨基酸均不一致,暂取名为南瓜子氨酸(cucurbitine),简称南氨酸。 2.南氦酸经元素分析及分子量测定结果,确定其分子式为C_5H_(10)O_2N_2。熔点约260°(分解)。[a]~(27)_D=-19.76°(c=9.31%;水)。并制成其盐酸盐,熔点278°(分解),[a]~(19.3)_D=-15°(c=1%;水);高氯酸盐,熔点约275°(分解),[a]~(20.5)_D=-13.08(c==10.4%;水);二苯甲酰衍生物,熔点207—208°(分解),[a]~(24.5)_D=-1.63°(c=4.83%,甲醇);双二硝基苯衍生物,熔点230—232°(分解)。 3.南氢酸经红外吸收光谱分析及功能团的测定,证明其中含有二氨基,伯胺和仲胺各一。另一功能团是羧基,因此其示性式应为C_4H_6(NH)(NH_2)COOH。 4.南氨酸的二硝基苯衍生物的紫外吸收光帮特征及酸水解稳定性试验结果表示其母核与氮戊环相近。 5.将南氨酸直接用高锰酸钾氧化所得产物证明是β...

1.从治疗血吸虫病中药中国南瓜子(Cucurbita moschata Duch.),经化学提取得一种新化合物,其物理及化学性质与已知的氨基酸均不一致,暂取名为南瓜子氨酸(cucurbitine),简称南氨酸。 2.南氦酸经元素分析及分子量测定结果,确定其分子式为C_5H_(10)O_2N_2。熔点约260°(分解)。[a]~(27)_D=-19.76°(c=9.31%;水)。并制成其盐酸盐,熔点278°(分解),[a]~(19.3)_D=-15°(c=1%;水);高氯酸盐,熔点约275°(分解),[a]~(20.5)_D=-13.08(c==10.4%;水);二苯甲酰衍生物,熔点207—208°(分解),[a]~(24.5)_D=-1.63°(c=4.83%,甲醇);双二硝基苯衍生物,熔点230—232°(分解)。 3.南氢酸经红外吸收光谱分析及功能团的测定,证明其中含有二氨基,伯胺和仲胺各一。另一功能团是羧基,因此其示性式应为C_4H_6(NH)(NH_2)COOH。 4.南氨酸的二硝基苯衍生物的紫外吸收光帮特征及酸水解稳定性试验结果表示其母核与氮戊环相近。 5.将南氨酸直接用高锰酸钾氧化所得产物证明是β-丙氨酸与甘氨酸。这表明其氨某与羧基的位置只有在3,4-位或3,3-位的可能,即Ⅱ或Ⅲ的结构式。该二化合物后经人工合成,与天然南氨酸进行混合熔点测定,颜色反应,氧化反应,纸上层析,红外吸收光谱及生物试验等比较结果,证明与Ⅲ完全一致。即南氨酸的化学结构是(一)-3-羧基-3-氨基氮戊环,是一新发现的氨基酸。

(1) Activities due to various neural structures in the lateral geniculate body of the cat were studied by means of glass capillary microelectrode. These structures are the presynaptic axon and various parts of the postsynaptic neuron. Aside from the usual forms of the response of these structures, less usual forms were described. Single and repetitive stimulations of the optic nerve by electrical shocks were employed as a means of differentiating pre- and post-synaptic response. (2) In substantiating a view...

(1) Activities due to various neural structures in the lateral geniculate body of the cat were studied by means of glass capillary microelectrode. These structures are the presynaptic axon and various parts of the postsynaptic neuron. Aside from the usual forms of the response of these structures, less usual forms were described. Single and repetitive stimulations of the optic nerve by electrical shocks were employed as a means of differentiating pre- and post-synaptic response. (2) In substantiating a view expressed by some workers, further evidence has been adduced to indicate that activity due to a single optic nerve fibre is capable of initiating postsynaptic discharge. However, the readiness of different neurones to fire upon the arrival of impulses from the optic tract is quite variable. In general, this variability is due not so much to the smallness of excitatory synaptic potential initiated as to the condition imposed by the mixed action of both excitatory and inhibitory input. (3) Two steps in the generation of the postsynaptic spike could be dissociated by experiment using two antidromic shocks. This offers a direct proof that the two steps are respectively generated by the initial segment of the axon and the neuron soma proper.

(一)本工作采用玻璃微电极分析了猫外膝体神經結构的电活动。一般說,突触前軸突和突触后神經原不同部分的活动,均有一定的特性,不难加以区別,但是对某些少見的情况,单个或重复电刺激祝神經仍然不失为有效的鉴別突触前和突触后活动的手段。 (二)本文提供了实驗,說明单根祝神經紆維的传入冲动,就其本身所引起的突触电位大小而言,足以引起突触后神經原发放,但是实际上能否引起突触后传导的反应,对不同的神經原和在不同的情况,有很大的差別。这些差別,主要是由于兴奋性和抑制性輸入同时作用的結果。 (三)外膝体神經原峯电位的两个成分能用二个逆行刺激的方法加以分离,这表明它們是分別在軸丘和細胞体发生的。

 
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