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usually adopts
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  一般采用
     AD100 usually adopts ETHERNET protocol to conduct data transfer,but other universal computers often use TCP/IP protocol.
     AD10 0一般采用ETHERNET协议来进行数据传输 ,而其它通用计算机较多采用的是TCP/IP协议。
短句来源
     Fan beam industrial CT system usually adopts filter backprojection algorithm to reconstruct CT images. Its computational complexity is O(N3).
     扇束工业CT一般采用滤波反投影算法进行CT图像重构,其计算复杂度为O(N3)。
短句来源
     The quantitative test for the components in blended product usually adopts the chemical dissolution method; the sample needs drying to be constant weight before and after the dissolution for about 8~9h,which has a strong impact on the test cycle.
     混纺产品中各组分的定量测试一般采用化学溶解法,试样在溶前和溶后都需烘至恒重,标准烘干时间需8~9h,严重影响样品的测试周期。
短句来源
     Fan beam industrial CT system usually adopts filter back-projection algorithm to reconstruct CT images. Its computational complexity is O(N3)[1].
     扇束工业CT一般采用滤波反投影算法进行CT图像重构,其计算复杂度为O(N)。
短句来源
     Quality-of-service(QoS) multicast routing is a NP complete problem. The solution of the problem usually adopts the method of optimizing.
     QoS多播路由问题是 NP完全问题,问题的求解一般采用优化方法。
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  通常采用
     Estimation of GM(1,1) model parameter usually adopts the least square criterion, but test of model precision often uses average relative error criterion.
     估计GM(1,1)模型中的参数通常采用最小二乘准则,而在模型精度检验时又常采用平均相对误差。
短句来源
     Harmonic analysis usually adopts FFT algorithm, the 280 Sample points need interpolation management, which make FFT faster.
     谐波分析通常采用FFT算法,为了加快FFT的运算速度,需要对280个采样点进行插值处理。
短句来源
     Virtual reference service usually adopts three models in digital library.
     数字图书馆中虚拟参考咨询服务通常采用三种模式。
短句来源
     Estimation of Verhulst's Model parameter usually adopts least square criterion,but testing model precision often use average relative error.
     估计灰色Verhulst模型中的参数通常采用最小二乘准则,而在模型精度检验时又经常采用平均相对误差.
短句来源
     Traditional power quality monitoring system usually adopts Client/Server mode and its analysis results are displayed by simple graph and/or character, so its ability to represent the information is weak.
     传统的电能质量监测系统通常采用客户机/服务器模式,且只用文字或结合简单图形显示分析结果,表现能力差。
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  “usually adopts”译为未确定词的双语例句
     On the one hand, the diversification of insurance product and service need the cost assigns the each cost target according to the true occurrence level, but the traditional cost accounting method usually adopts the single allotment standard while assign overhead cost, it is easy to result in cost distort;
     一方面,保险产品与服务的多元化要求将成本分配比例按照其真实的发生水平分配到各个成本目标,而传统的成本会计方法在分配间接费用时往往只采用单一的分配标准,无法正确反映不同产品所发生费用的多少,容易造成成本扭曲的现象,决策者无法获知产品与服务准确的成本与效益,从而不能做出正确的经营决策;
短句来源
     Therefore,the common speech recog-nition system usually adopts the recognition approach based on HMM as its basic algorithm.
     因此,一般的语音识别系统都采用基于HMM的识别方法作为其基本算法。
短句来源
     E-Commerce security protocol usually adopts SSL and SET protocol.
     电子商务中的安全协议主要采用SSL协议和SET协议。
短句来源
     In order to improve smelting coefficient of blast furnace,produce more molten iron and decrease energy consumption,enterprise usually adopts furnace top high pressure operation.
     为了提高高炉冶炼系数,多出铁,减少能源消耗,企业通常尽量采用炉顶高压操作。
短句来源
     Weighing instrument verification usually adopts direct plus weight method, it needs certain unconventional methods in the dynamic verification of some automatic weighing instrument.
     衡器检定通常是采用直接加砝码法,但一些自动衡器的动态检定中需要采取某些非常规的方法。
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  usually adopts
A public hearing, onetechnique of public participation, is a good mechanism tosolve conflict problems in a non-violent way which the ThaiGovernment usually adopts to settle conflict in constructionprojects.
      
Despite this fact, the traditional nonsway frame design usually adopts flexible joints.
      


This paper describes firstty the simplified double-specimen method for calculating JIC,iustend of themulti—specimen method for the accurn —te JIC On account of the slight difference between the two values of JIC btained the author derives the practical formula JIC= with single specimen only.In the case of lowd medium strength steels the maxium error of JIC thus obtained is 20%,and the error of KIC obt ainedafter conversion is less than 10% as to meet the practicalengineer ing demand.However,the error of JIC...

This paper describes firstty the simplified double-specimen method for calculating JIC,iustend of themulti—specimen method for the accurn —te JIC On account of the slight difference between the two values of JIC btained the author derives the practical formula JIC= with single specimen only.In the case of lowd medium strength steels the maxium error of JIC thus obtained is 20%,and the error of KIC obt ainedafter conversion is less than 10% as to meet the practicalengineer ing demand.However,the error of JIC is generally below 10% if the quantities involved are carefully determined,so that a better KIC re sults.The formula described in the paper is of simple form,with high accuracy and less scattering is data.It is therefore recommended as a practical formula for calculating JIC in place of the fomula JIC=2U/B(w-a) usually adopted.

在本文的开始部分,叙述了采用简化双试件法来计算 J_(Ic),以代替求 J_(Ic)精确值的多试件法。由于两个 J_(Ic)值相差微小,作者就根据双试件法而导出只需单个试件的实用公式 J_(Ic)=1.2U/B(W-1.2a)。对于低、中强度钢,由此式得到的J_(Ic)其误差最大为20%,换算后得到的 K_(Ic)。值误差小于10%,这就满足了实际工程需要。事实上,如果谨慎测得式中有关各量,J_(Ic)的误差常不超过10%,因而可得到更好的 K_(Ic)结果。本文所导出的公式,形式简单,精度高,数据分散性小,因此可推荐作为 J_(Ic)的实用计算公式,以替代通常应用的公式J_(Ic)=2U/B(w-a)°。

The transfer matrix method is usually adopted for calculating critical speeds, principal modes and the unbalance response of multi-span shafts. However, due to errors introduced by limited word capacity of the computer, the calculated principal modes may suffer serious distortion and the residual moments may jump irregularly from certain rotating speeds onward, so that the calculation would often result in failure. In this paper, the causes producing the above mentioned phenomena are analysed and a correction...

The transfer matrix method is usually adopted for calculating critical speeds, principal modes and the unbalance response of multi-span shafts. However, due to errors introduced by limited word capacity of the computer, the calculated principal modes may suffer serious distortion and the residual moments may jump irregularly from certain rotating speeds onward, so that the calculation would often result in failure. In this paper, the causes producing the above mentioned phenomena are analysed and a correction matrix method is presented in order to compensate for the loss of significant figures. When the correction matrix is used, one can obtain more accurate and reasonable results in the calculation of principal modes and residual moments. In spite of limited computer word capacity, it is still possible to successfully calculate the higher frequencies and principal modes of shaft systems with even greater number of spans by the transfer matrix method. It is also possible to improve the calculated results under certain conditions by using the central residual method. In the last part of this paper, an example for calculation on a multi-span shaft is given. It is shown in this example how the ordinary transfer matrix method would fail and how reasonable results could be obtained by means of the correction matrix method. The improved methods presented in this paper would be of appreciable value when we use the transfer matrix method for the calculation of such vibration problems as the unbalance response of a flexible rotor.

传递矩阵法常用于计算多跨转子的临界转速、振型及不平衡响应。由于计算机字长是有限的,从某些转速开始,所算得的振型会严重失真,剩余力矩也会出现不规则的跳动现象,从而使计算结果失败。本文分析了产生这一现象的原因,并提出了用校正矩阵法可以成功地补偿有效数字的损失。经过校正矩阵的修正,可使振型及剩余力矩的计算得到比较正确合理的结果,从而在计算机字长有限的条件下,可以用传递矩阵法计算跨数更多的轴系的高阶频率及振型。 本文还提出了一种中部余量法,在一定条件下也可以改善计算的结果。文章最后给出一个多跨轴的计算实例,从实例中可以看出传递矩阵法的失效及用校正矩阵法修正后的合理结果。 本文所提出的方法,对于用传递矩阵法计算诸如柔性转子的不平衡响应等振动问题时有参考意义。

(i) A relationship between the molecular weight and the intrinsicviscosity of poly-isobutylenes with molecular weight ranging from650—2000 has been establisthed as: [η] = 3. 80×10~(-2)M~(0.69) In view of its excellent solving power, lower toxicity and being easilypurified, we prefered to use cyclohexane as solvent other than benzene,which was usually adopted by others. (ii) Various commercial polyisobutylenes obtained from several sourceshave been tested by this method. The results obtained have been comparedparallelly...

(i) A relationship between the molecular weight and the intrinsicviscosity of poly-isobutylenes with molecular weight ranging from650—2000 has been establisthed as: [η] = 3. 80×10~(-2)M~(0.69) In view of its excellent solving power, lower toxicity and being easilypurified, we prefered to use cyclohexane as solvent other than benzene,which was usually adopted by others. (ii) Various commercial polyisobutylenes obtained from several sourceshave been tested by this method. The results obtained have been comparedparallelly with the data determined by Endos' formula in benzenesolutions, the average deviation between these two methods is withinthe permissible error range, i.e<5% (see Table 4). (iii) The data calculated from the formula for middle molecular-weightpolyisobutylenes are far lower (by~35%) than the corresponding dataobtained by above two methods. This comparison has shown that thismiddle-molecular-weight formula is unapplicable to be extended to thedeterminatiom of the molecular weight of the above-metioned low-molecu-lar-weight polyisobutylenes。

(i)建立了一种分子量范围在650—2000的低分子聚聚丁烯的特性粘数和分子量之间的关系式,如 [η]=3.80×10~(-2)M~(0.69)鉴于环已烷具有优良的溶解能力,低毒及易于纯化等优良,我们于是选用了它作溶剂而没有采用其他作者常用的苯作溶剂。 (ii)用这方法测试了几种低分子聚异丁烯的分子量。所得结果与按Endo公式在苯溶液中所测得者平行对照。平均偏差在允许误差范围之内,<5%(见表4)。 (iii)按中分予聚异丁烯粘度法公式计算所得结果比上述两种方法测出的相应值偏低很多(偏低~35%)

 
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