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     In this paper, we have studied the indefinite equation x 3±(2 2k+1 ) 3=3Dy 2 by the elementary method and gave out some sufficient conditions that the equation x 3±(2 2k+1 ) 3=3Dy 2 have not nontrivial integer solution.
     本文用初等数论的方法研究了一类不定方程x3± ( 2 2k+1 ) 3=3Dy2 ,并给出它们无非平凡整数解的一些充分条件 .
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     The computer simulation also gave out two order parameter ( φ 1= 1.5 and φ 2= 4.5 , which correspond well to E c1 and E c2 , respectively.
     计算机模拟的结果分别给出了两个对应于电压阀值 Ec1和 Ec2 的序参量 φ1=1.5和 φ2 =4 .5。
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     This paper gave out a matrix identity connecting AOR and Jacobi iterative matrice with(q,p - q) - generalized consistently ordered matrix,(p,q)= (2,1).
     给出AOR加速松弛)迭代与Jacobi迭代在广义相容次序(q,p-q)矩阵下,(p,q)=(2,1)情形的迭代矩阵之间的一个等式.
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     This paper analyzed the error of the more than one secondary windings voltage transformer,and gave out the method of error measurement and calculation with real load.
     分析了二次侧具有两个或两个以上负载绕组电压互感器的误差,推算出其在带实际负载运行时计量绕组的误差计算公式,并根据误差公式给出了实际负载误差的测试与计算方法。
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     this system included the core controller based on S3C44B0X ,the position loop based on lm629, and the amplifier based on lmd18200, the software strategy based onμc/os Ⅱ ,and so on. The experiment result that proved the feasibility was gave out at the end of paper.
     重点介绍了以S3C44B0X为核心的控制系统、基于LM629的位置闭环单元,基于LMD18200的功率放大单元,和基于实时多任务操作系统μc/osⅡ的软件设计策略,并给出了机器人运动实验的结果,证明了系统的可行性。
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  “gave out”译为未确定词的双语例句
     50ml of Roselle cells culture under 31.0w/m~2for 18days gave out 21.6mg of anthocyanin, and the pigment content in cell was 30.17mg/gWdc .
     在50ml培养体系中,光照强度为31.0w/m~2时玫瑰茄细胞经过18天培养,细胞中花青素的含量为30.17mg/gWdc(细胞干重)、培养液中最终花青素的产量为21.6mg/50ml。
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     During the alteration, a lot of SiO2 gave out, but Al2O3, TiO2, CaO, MgO, K2O, H2O,CO2, Fe2O3 and MnO added sepaarately. Meanwhile, REE gave out together.
     蚀变作用过程中SiO2大量析出,Al2O3、TiO2、CaO、MgO、K2O、H2O、CO2、Fe2O3、MnO则有不同程度地带入。
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     There were two bone-cutaneous branches calibrated (1. 2±0. 3) mm at the origin which gave out 1 to 2 tibial periost branches.
     骨皮支2支,起始处外径为(1.2±0.3)mm,均发出1~2支骨膜支分布于胫骨骨膜;
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     The left inferior phrenic artery and liver middle artery formed vessel archs and gave out 6-12 branches to falciform ligament.
     血供主要来自左膈下动脉和肝中动脉,二者于镰状韧带肝缘形成血管弓,并发出6~12支分布于镰状韧带;
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     From Dec.2,1997 to Jan.2,1998,the second "third section Iaw"im age appeared again,we gave out the second short term prediction from Jan.3,1998 to Feb.3,1998.
     到1997年12月至1998年1月2日又出现了第二个层次的三分律图象,又进一步作出了第二个层次从1月3日到2月3日为时一个月的短期预报
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     The last part gave out the conclusion.
     第五部分给出结论。
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     The experiments gave out the encouraging positive result.
     试验结果表明该仪器可以对关键设备起到很好的监测和分析作用。
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     Dinner Out
     在外晚餐
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     RIVER IS IN AND OUT
     唐锡阳绿色沉思与百家评点:河流是弯弯曲曲的
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     End, conclusion was gave.
     最后得出了结论。
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  gave out
We identified these papers by examining the references that the core journals gave out in 1983.
      
When the horses gave out, the men killed them and drank their blood.
      
We had a booth and gave out our pins and brochures.
      
The province in which the power plant was located gave out these permits.
      
The chapter served over two hundred hotdogs and gave out spirit items to the fans, which were provided by the College of Arts and Sciences.
      
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Comparing the infrared absorption spectra of the typical crystals of albite, orthoclase,nepheline of 4-coordinated Al~(3+) ions and spodumene, kyanite, beryl of 6-coordinated Al~(3+) ions with that of R_2O-Al_2O_3-SiO_2 system glasses, it has been found that in the glasses theAl~(3+) ions are 4-coordinated when R_2O/Al_2O_3>>1. But it is different in Li_2O-Al_2O_3-SiO_2glasses that the coordination number of part of Al~(3+) ions may be 6. No anomaly related to the presence of mixed alkali was found on the infrared...

Comparing the infrared absorption spectra of the typical crystals of albite, orthoclase,nepheline of 4-coordinated Al~(3+) ions and spodumene, kyanite, beryl of 6-coordinated Al~(3+) ions with that of R_2O-Al_2O_3-SiO_2 system glasses, it has been found that in the glasses theAl~(3+) ions are 4-coordinated when R_2O/Al_2O_3>>1. But it is different in Li_2O-Al_2O_3-SiO_2glasses that the coordination number of part of Al~(3+) ions may be 6. No anomaly related to the presence of mixed alkali was found on the infrared andultra-violet absorption spectra for a series of alumino-silicate glasses. The principal peak at ca1000 cm~(-1) moves to lower wave numbers as the radii of network modifying ions are increas-ed. R_2O-Al_2O_3-SiO_2 system glasses have higher transmittance than R_2O-CaO-SiO_2 systemglasses in the ultraviolet region (330-350μm). Experimental data of the physico-chemicalproperties of R_2O-Al_2O_3-SiO_2 glasses showed that, in the presence of mixed alkali, someproperties (viscosity at low temperatures, coefficient of thermal expansion, water durabili-ty, etc.) gave out the mixed alkali effect, but for another properties (microhardness,acid or alkali durability, etc.) the mixed alkali effect would be inexplicit. According to the infrared absorption spectra, the structure model of R_2O-Al_2O_3-SiO_2was discussed. We have pointed out that, in order to obtain industrial alumino-silicateglasses with satisfactory stability, it is necessary to combine the eutectic compositions withstructural considerations, that is to say, the glasses must have the atomic groupmentof type R~+X·4Y(R~+=Na~+ or K~+, X=[AlO_4], Y=[SiO_4]). On account of lowering the meltingtemperature in production, the addition of certain excess quantity of Na_2O will be need-ed. Besides, the addition of K_2O or Li_2O will produce mixed alkali effect to improve theproperties of glass. The design of the glasses on the base of R_2O-Al_2O_3-SiO_2 have beendiscussed.

通过对具有[AlO_4]的钾长石、钠长石、霞石与具有[AlO_6]的锂辉石、兰晶石、绿柱石的典型晶体的红外光谱和R_2O-Al_2O_3-SiO_2系统玻璃的红外光谱对比,可以认为当R_2O/Al_2O_3≥1时,玻璃中的Al~(3+)处于[AlO_4]状态。而Li_2O-Al_2O_3-SiO_2系统玻璃的情况则有所不同,部分Al~(3+)可能处于[AlO_6]。实践表明:在红外光谱,紫外至近红外吸收光谱上,双碱铝硅酸盐玻璃并不表现出异常现象,但在1000厘米~(-1)波数左右的吸收带受到网络间隙离子半径大小的影响而有所位移。同分子组成的R_2O-Al_2O_3-SiO_2系统玻璃与Na_2O-CaO-SiO_2系统玻璃相比,在紫外波段(333~350毫微米)具有较高的透射率。对R_2O-Al_2O_3-SiO_2系统玻璃物理-化学性质的测定表明,一些性质(如低温粘度、热膨胀系数、抗水性等)显示出明显的双碱效应,而另一些性质(如显微硬度、抗酸性等)则并不明显。根据对红外光谱的研究,文中讨论了R_2O-Al_2O_3-SiO_2系统玻璃的结构模型。认为从结构的观点与相图中的低共熔点组成相结合,为使R_2O-A...

通过对具有[AlO_4]的钾长石、钠长石、霞石与具有[AlO_6]的锂辉石、兰晶石、绿柱石的典型晶体的红外光谱和R_2O-Al_2O_3-SiO_2系统玻璃的红外光谱对比,可以认为当R_2O/Al_2O_3≥1时,玻璃中的Al~(3+)处于[AlO_4]状态。而Li_2O-Al_2O_3-SiO_2系统玻璃的情况则有所不同,部分Al~(3+)可能处于[AlO_6]。实践表明:在红外光谱,紫外至近红外吸收光谱上,双碱铝硅酸盐玻璃并不表现出异常现象,但在1000厘米~(-1)波数左右的吸收带受到网络间隙离子半径大小的影响而有所位移。同分子组成的R_2O-Al_2O_3-SiO_2系统玻璃与Na_2O-CaO-SiO_2系统玻璃相比,在紫外波段(333~350毫微米)具有较高的透射率。对R_2O-Al_2O_3-SiO_2系统玻璃物理-化学性质的测定表明,一些性质(如低温粘度、热膨胀系数、抗水性等)显示出明显的双碱效应,而另一些性质(如显微硬度、抗酸性等)则并不明显。根据对红外光谱的研究,文中讨论了R_2O-Al_2O_3-SiO_2系统玻璃的结构模型。认为从结构的观点与相图中的低共熔点组成相结合,为使R_2O-Al_2O_3-SiO_2系统玻璃具有良好的稳定性质,玻璃应拥有R~+X·4Y(R~+:Na~+或K~+,X:[AlO_4 ],Y:[SiO_4])原子团结构型。在工业生产中玻璃的熔制温度必须较低,因而还应加入一定过量的Na_2O。此外,引入K_2O或Li_2O还可产生?

This paper presents a new problem on the filter properties of the axial conductor loaded helix. By using the equivalent transmission network analysis, it shows that the filter properties are different from those of the structures as suggested in narrow band TWT. In this kind of structure, the TWT can be constructed not only in narrow band operation, but also can be constructed in super-wide band operation.The theoretical analysis of the axial conductor loaded helix shows that its transverse impedance can be...

This paper presents a new problem on the filter properties of the axial conductor loaded helix. By using the equivalent transmission network analysis, it shows that the filter properties are different from those of the structures as suggested in narrow band TWT. In this kind of structure, the TWT can be constructed not only in narrow band operation, but also can be constructed in super-wide band operation.The theoretical analysis of the axial conductor loaded helix shows that its transverse impedance can be loaded lower enough even to 50 ohms and easy matched to the external coaxial coupler directly, while at the same time, it still maintains the coupling impedance in rather higher values and obtains high gain in TWT.The one of the distinguished advantage of the filter type slow wave circuit using in TWT is its property of suppression the BWO. Axial conductor loaded helix also has such kind of property. Dr. Otto Sauseng of USA in 1970 had adopted this kind of slow wave circuit in his TWT, no BWO occured, yet he gave no explaination. Actually, as shown in this paper, the suppression of BWO is due to the filter property of the structure. The TWT when using this kind of structure shows that the operation is quite stable. The theoretical calculation method of the axial conductor loaded helix as used in USA is the S. F. Paik's method, while in USSR the H. H. method is used. But these two methods mainly gave out the dispersion relations, no filter properties were pointed out, and no such kind of characteristics as the pass-band, the stop band, the suppression of BWO, the effect of the numbers of metalic conductor, the effect of the dimensions of the metalic conductor, and the effect of the position of the coaxial coupler, were revealed out. While in this paper, all these problems are analyzed and relations are given. Besides, the cold circuit experiment has been performed and the dispersion curve obtained is shown more close in this method than in S. F. Paik's method, and the match of the input coupler in super-wide band is also quite well. Therefore this filter analyzing method can be used to design such kind of loaded helix for super-wide band TWT.

本文首次指出了纵向金属条加载螺旋线的滤波性质这一新问题。这种慢波结构的滤波性质有别于过去国外所提出的滤波螺旋线。它不仅能够构成窄通带的行波管,而且也可以构成超宽通带行波管。其次,用它作为行波管的慢波线时,它的横向阻抗可以压低,易于与外接耦合头直接匹配,而它的耦合阻抗仍可保留较高的数值,使行波管在超宽通带范围内仍可获得较大的增益分贝数。滤波性慢波线行波管的另一优点,是它的抑止返波振荡的性质。纵向金属条加载螺旋线同样具有此一性质。 本文对纵向金属条加载螺旋线的滤波性质作了理论分析,对它的色散特性作了冷测试验,两者有良好的相符。 纵向金属条加载螺旋线的计算,在美国系用Paik的方法,而在苏联有方法。这二个方法仅解决了色散的计算,而完全没有涉及滤波的性质,因而也没有提出诸如通带、禁带、抑止返波振荡、金属条数目、金属条宽窄和激励头地位等等的性质和问题。本文的理论分析对这许多问题均作出了回答,理论分析符合冷测结果,因而它可供设计计算之用。

Active R filters appeared in last decade.These filters make use of the roll-off characteristics of operational amplifiers,so that filter circuits can be constructed without external capacitors.This seems very skillful,but the value in practical use still left to be investigated.we designed and practically constructed and tested several filters using different circuits.From these results,we summarized the relative advantages and disadvantages of these and gave out their evaluations in practical use.

全 R 滤波器是七十年代后期出现的有源滤波器电路。利用运算放大器的滚降特性可免去电容器,似颇巧妙。但其实用价值如何,尚待探讨。我们用几种全 R 电路设计了滤波器,并实际制作测试,从而总结出这些电路的优缺点,作出其适用情况的评价。

 
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