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  seven
     Fibrous Dysplasia with Report of Seven Cases
     纖維異样增殖症(附例病案报告)
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     PHOTOMETRIC INVESTIGATIONS OF SEVEN VARIABLE ASTEROIDS
     颗变光小行星的观测研究
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     SEVEN NEW HEXAGONAL POLYTYPES OF SILICON CARBIDE
     种新的SiC六方多型体
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     THE REACTION OF 4-HYDROXYMETHYLENE-2,2,5,5-TETRAMETHYL-TETRAHYDROFURANONE-3 AND SEMICARBAZIDE DERIVATIVES Ⅱ. SYNTHESIS OF THE COMPOUNDS CONTAINING THREE NITROGEN ATOMS IN A SEVEN MEMBERED-RING
     2,2,5,5-四甲基-4-羟次甲基四氢呋喃酮-3与某些氨基脲的反应 Ⅱ.三氮元环化合物的合成
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     Seven New Species of Monogenetic Trematodes of Freshwater Fishes
     淡水鱼类单殖吸虫新种
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  hepta
     The design of hepta polynomial dynamic cam profile for diesel engines on MATLAB
     应用MATLAB设计柴油机项式动力凸轮型线
短句来源
     The mathematical model of optimizing design for hepta polynomial dynamic cam was established.
     建立了次多项式动力凸轮型线的优化设计数学模型;
短句来源
     Based on the single mass dynamics model, the analytical functions of hepta polynomial dynamic cam have been conducted. A program of cam profile design has been compiled on MATLAB and taking a detailed high speed diesel engine as an example, symmetrical cam profile design has been conducted.
     基于单质量动力学模型,推导项式动力凸轮型线的解析式,利用MATLAB语言编制出设计程序,并以具体的某高速柴油机为例,给出对称凸轮型线的设计结果。
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  “七”译为未确定词的双语例句
     Study on the History of Political Relations of Northeastern Asia from the Fourth to the Seventh Century
     公元四至世纪东北亚政治关系史研究
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     The Synthesis, Electronical Structure and Photoelectric Properties of Series Seven-membered Heterocycre Bridged Bipnenyl Monomers and Polymers
     系列元内环联苯单体及聚合物的合成,电子结构与光电性质的研究
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     The Effect of the Combination of Sal B and PNS on Rats with Myocardial Infarction and the Molecular Mechanism of Limiting Myocardial Apoptosiss
     丹酚酸B/三总皂苷配伍对心肌梗死大鼠的影响及抑制心肌细胞凋亡的分子机制研究
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     Synthesis and Spectral Properties of Near-Infrared Heptamethine Cyanine Fluorescence Dyes with Thio or Amino Substitution at the Central Position
     近红外中位硫、氮取代甲川菁类荧光染料的合成及光谱性能研究
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     Genetics Diversity and Molecular Phylogeography of Clintonia Udensis
     筋菇植物遗传多样性与分子系统地理学研究
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  seven
As a corollary, we obtain a new proof for Roberts' well-known counterexample in dimension seven.
      
Seven compounds caused 50% growth inhibition (GI50) of tumor cells at concentrations of >amp;lt;100 μM while the remaining ten were not cytotoxic.
      
Compounds 5 and 8 with seven-member C ring were more active than etofylline and caused 100% relaxation of both the histamine and acetycholine pre-contracted guinea pig tracheal chain.
      
The first nine singular point quantities at infinity and first seven singular point quantities at the origin for the system are given in order to get center conditions and study bifurcation of limit cycles.
      
One hundred twenty-seven topological descriptors of 207 methylalkane structures are calculated and investigated via the quantitative structure-property relationship (QSPR) model in the present paper.
      
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  hepta
Biologically Active Hepta-, Octa-, and Nonapeptides
      
Based on a spectrophotometric analysis of solutions, redox conversions, observed in the hydrogen range of potentials, are referred to dissolved hepta- and decatungstates present in the system.
      
Synthesis and Photoinitiated Isomerizations of 3-(4-Nitrophenyl)-and 3-(4-Aminophenyl)bicyclo[2.2.1]hepta-2,5-diene-2-carbaldehy
      
3-(4-Nitrophenyl)bicyclo[2.2.1]hepta-2,5-diene-2-carbaldehyde and its derivatives at the formyl group were synthesized.
      
By reduction of the nitro group the corresponding 3-(4-aminophenyl)-substituted compounds were obtained, as well as 4,4'-bis(bicyclo[2.2.1]hepta-2,5-dien-2-yl)azobenzenes.
      
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This paper describes the dynamic behaviors of a selfbiased bistable multivibrator by the use of waveform analysis with special attention to the switching action of the isolation diodes and the effect of the symmetrical triggering pulse. Seven typical forms of transi-tion and four typical forms of failure are introduced in which the monotonic transition case with the grid voltage intersection point at the leading edge of the triggering pulse gives the highest dynamic stability. Experimental results are included...

This paper describes the dynamic behaviors of a selfbiased bistable multivibrator by the use of waveform analysis with special attention to the switching action of the isolation diodes and the effect of the symmetrical triggering pulse. Seven typical forms of transi-tion and four typical forms of failure are introduced in which the monotonic transition case with the grid voltage intersection point at the leading edge of the triggering pulse gives the highest dynamic stability. Experimental results are included to illustrate the main points.

在研究触发器的动态过程中,我们考虑了隔离二极管的开关作用和触发脉冲的影响,介绍了一种简单直观的分析方法. 文中概括出触发器的种典型翻转过程和四种破坏情况,指出“交点在前沿的单调翻转过程”的动态可靠性最高.文中主要论点都有实验验证.

The dielectrie constants of toluene, carbon bisulphide, normal pentane, normal hexane, ethyl ether and iso-amyl alcohol were measured by a capacity bridge using a specially constructed liquid condenser at both 30° and 75℃ (22.4℃ only for the last liquid), for frequencies of 600,1000 and 2000 cycles per sec. and under pressures from 1 up to 12,000 kg/cm2. For the first four liquids, the dielectric constant is practically independent of the frequencies

作者用一电容桥及一特制之液体蓄电器以量甲苯,二硫化碳,正戊烷,正己烷,乙醚,及异戊醇之比电容。所用温度为摄氏三十及十五度(异戊醇之温度仅为二十二度四),频率为每秒六百,一千及二千周,压力自一气压高至一万二千气压。前四液之比电容几与所用频率无关。(ε-1)/(ε+2)·1/d,(ε-1)/d及(ε~(1/2))-1/d三式中以第一式最近一常数,然压力渐增第一式之值恒随之而渐减,至一万二千气压时(在甲苯为九千五百气压),其减少约数在甲苯及二硫化碳为百分之三,在乙醚为百分之八,在异戊醇为百分之十九,显随电矩之增加而增加,至其原因篇中亦略加说明。 篇中图表惠蒙同事朱福炘先生代为抄绘,附誌谢忱。

With γ-rays of various wave-lengths the number of counts produced in a Geiger-Muller counter of Pb-wall was determined in equal time intervals. The same experiment was carried out with a counter of Al-wall. Let Npb and NA1 represent the number of counts produced in the Pb-counter and Al-counter respectively by a beam of γ-rays of even wave-length in a given time interval. The ratio Nph/NA1 observed decreases at first with the wavelength of the incident beam due to the diminishing photo-electric of lead. It is,...

With γ-rays of various wave-lengths the number of counts produced in a Geiger-Muller counter of Pb-wall was determined in equal time intervals. The same experiment was carried out with a counter of Al-wall. Let Npb and NA1 represent the number of counts produced in the Pb-counter and Al-counter respectively by a beam of γ-rays of even wave-length in a given time interval. The ratio Nph/NA1 observed decreases at first with the wavelength of the incident beam due to the diminishing photo-electric of lead. It is, however, found to increase by 16% when the wavelength of the incident radiation is decreased from a value 6.6 x. u. 4.7 x. u. This rising is due to particles produced by the interaction of hard γ-rays with the Pb-nuclei.

能力极大的丙种镭辐射,可以影响原子核,这是新近发见的事实。为进一步的研究,我们把极硬的丙种镭辐射,照在铅的数电子管(Electron Counter)上结果:除了射出的光电子和反跳子(Compton RecoilElectron)外,还观察到一种电子(有阴阳二种),约占总数的百分之十。这种电子的来源,现在有两种解释:1从原子核里射出。(2)直接由丙种镭辐射变成。

 
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