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explosives
相关语句
  炸药
     The Applied Study on Explosives from Obsolete Propellants
     废弃发射药制造炸药的应用研究
短句来源
     Study on Experimentation and Theory of Detonation and Safety for Composition Explosives
     混合炸药爆轰与安全性能实验与理论研究
短句来源
     Research on Detonation Characteristics of Emulsion Explosives
     乳化炸药爆轰特性研究
短句来源
     Computational Simulation Study on Structure and Performance of Polymer Bonded Explosives
     高聚物粘结炸药结构与性能的计算模拟研究
短句来源
     SLURRY EXPLOSIVES USING SESBANIA GUM AS GELATINIZER
     以田菁胶为胶凝剂的浆状炸药
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  “explosives”译为未确定词的双语例句
     Research on Explosives Detection by Electronic Nose
     电子鼻在危险爆炸物检测中的应用研究
短句来源
     The kinetic parameters of thermal decompositions of RDX and HMX explosives were obtained by using DSC,DTA and TG-DTG.
     用DSC、DTA和TG-DTG技术测定了RDX和HMX热分解的动力学参数。
短句来源
     The method has been used to test three high polymer bonded explosives JOB 9003, JO 9159, and JB 9014, and their K 1c values are 0.24±0.01MPa·m 1/2 、0.17±0.01MPa·m 1/2 、0.37±0.01MPa·m 1/2 separately. The result shows that JB 9014 has better ability to resist flaw expanding.
     测试结果分别为 :0 .2 4± 0 .0 1MPa·m1/ 2、0 .17± 0 .0 1MPa· m1/ 2、0 .37± 0 .0 1MPa·m1/ 2 ,显示出 JB- 90 14具有相对较强的抗裂纹扩展能力。
短句来源
     Study on the System of 14 MeV Neutron Generator-based Explosives Detection Using NaI(Tl) and BGO Detectors
     基于14 MeVμs脉冲中子发生器与NaI(Tl)和BGO闪烁探测器的爆炸物检测系统的研制
短句来源
     4. MD simulation using COMPASS force field at NVT ensemble is carried out to investigate the mechanics properties of polymer bonded explosives (PBXs) composed of HMX and Estane5703, HTPB, PEG.
     4.在NPT系综下,利用COMPASS力场MD模拟,研究了HMX晶体及以HMX为基的与Estane5703、HTPB、PEG构成的PBX的力学性能。
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  相似匹配句对
     Emulsified Explosives
     乳化炸药
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     New Primary Explosives
     新型起爆药的应用
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  explosives
Diagnostics of the Afterburning of the Detonation Products of Condensed Explosives
      
The number defining the realization of the hot spot mechanism on detonation of heterogeneous explosives
      
Limiting detonation velocities and limiting propelling powers of organic explosives
      
Analysis of standard indices of impact sensitivity of solid explosives
      
The convective combustion of porous gunpowder and high explosives is an intermediate stage in the transition from layered combustion to detonation [1, 2].
      
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Based on the avialable aerological material in the middle and lower stratosphere for 4 winters (1957-1960), the author investigates the following problems: (1) the classification of stratospheric, circulation types (2) the periodical variation of temperature and circulation in stratosphere (3) the explosive warming and the associated changes in circulation. Furthermore, the relations between stratospheric and tropospheric circulation are also discussed in the light of synoptic analysis. The results are...

Based on the avialable aerological material in the middle and lower stratosphere for 4 winters (1957-1960), the author investigates the following problems: (1) the classification of stratospheric, circulation types (2) the periodical variation of temperature and circulation in stratosphere (3) the explosive warming and the associated changes in circulation. Furthermore, the relations between stratospheric and tropospheric circulation are also discussed in the light of synoptic analysis. The results are given below:1.The basic forms of general circulation in the middle stratosphere may be classified into five types [A, B, C, D and E, See Fig. 1-5], which largely d'epened upon the relative variations of position of the polar-night vortex and the Aleution high. A and B are the prevailing types of circulation in the winter season in the stratosphere, while E is the transitional type between type A and B.2.The variation of temperature field at 25 mb over Asiatic region indicates a period of eleven-days. The analysis also sugests the existence of the same periodical variation of the intensity of the Aleution high in the stratosphere (See Fig. 8).3.From the analysis of the 10 cases of explosive warming, it is shown that the source regions of the explosion are the Northern Pacific, the north-eastern Atlantic and the Europe. Furthermore, the site for the explosive warming for the most cases is to the south of the polar-night jet in strato-sphere.4.There are some evidences that the stratospheric circulation and the tropospheric circulation are apparently interacted.

本文利用1958—1961年冬半年资料对平流层中部的冬季环流作了综合性的研究。讨论了平流层环流分型问题、年际变化问题、平流层环流周期性变化问题以及平流层爆发性增温和环流演变关系问题,得到以下主要结果: 1.冬季平流层环流型式比较简单而且稳定,环流可以分为A,B,C,D,E_1和E_2型(图1—4)。其中A,B型平均周期在20—22天左右,且出现的日数占总的统计日数的四分之三左右。E_1和E_2是环流转变时期的过渡型,平均周期约8—10天。 2.冬季平流层环流年际变化较大,但其变化和对流层环流变化有相当好的对应性。 3.冬季平流层的环流和气温有11天左右的周期性变化。这种周期性变化可能是与平流层的阿留申高压周期性地加强减弱和周期性伸缩有关。对流层环流和温度可能也有11天左右的周期性变化,并和平流层周期性变化相对应。因而这种周期性变化可能是地球大气本身固有的振荡。 4.就固定地区而言,北半球爆发性增温的变温中心常起源阿拉斯加、堪察加、欧洲和大西洋中部四个地区,而爆发性增温经常在西伯利亚东部、欧洲、北美东北部和格陵兰地区出现。就环流系统而言,爆发性增温变温中心常起源于高压的东北和西北二侧,而在平流层急流的外侧发展,...

本文利用1958—1961年冬半年资料对平流层中部的冬季环流作了综合性的研究。讨论了平流层环流分型问题、年际变化问题、平流层环流周期性变化问题以及平流层爆发性增温和环流演变关系问题,得到以下主要结果: 1.冬季平流层环流型式比较简单而且稳定,环流可以分为A,B,C,D,E_1和E_2型(图1—4)。其中A,B型平均周期在20—22天左右,且出现的日数占总的统计日数的四分之三左右。E_1和E_2是环流转变时期的过渡型,平均周期约8—10天。 2.冬季平流层环流年际变化较大,但其变化和对流层环流变化有相当好的对应性。 3.冬季平流层的环流和气温有11天左右的周期性变化。这种周期性变化可能是与平流层的阿留申高压周期性地加强减弱和周期性伸缩有关。对流层环流和温度可能也有11天左右的周期性变化,并和平流层周期性变化相对应。因而这种周期性变化可能是地球大气本身固有的振荡。 4.就固定地区而言,北半球爆发性增温的变温中心常起源阿拉斯加、堪察加、欧洲和大西洋中部四个地区,而爆发性增温经常在西伯利亚东部、欧洲、北美东北部和格陵兰地区出现。就环流系统而言,爆发性增温变温中心常起源于高压的东北和西北二侧,而在平流层急流的外侧发展,在原来冷区或槽区引起爆发性增温。爆发性增温依变温中心移动路径不同,而和

This paper discusses some important problems of the design of blasting in dam con- struction by directional explosion. The planning of explosive charges is first mentioned.The effect of blasting order on the shape and height of piling is then discussed,and some principles for the deter- mination of rational order of blasting are outlined: 1.If the slopes of the two opposite river banks are unequal,but the quantities of materials to be projected from them to the dam are equal,then the flatter bank should...

This paper discusses some important problems of the design of blasting in dam con- struction by directional explosion. The planning of explosive charges is first mentioned.The effect of blasting order on the shape and height of piling is then discussed,and some principles for the deter- mination of rational order of blasting are outlined: 1.If the slopes of the two opposite river banks are unequal,but the quantities of materials to be projected from them to the dam are equal,then the flatter bank should be blasted earlier than the other. 2.If equal quantities of materials are projected from the two opposite banks of equal slopes,then they should be blasted simultaneously. 3.If the quantity of materials projected from one bank is much greater than that from the other,then the forth bank should be blasted earlier. According to the characteristics and requirements of dam construction,a formula considering the slope effect of ground surface is given for evaluating the weight of ex- plosive charges.And,in order to obtain a rather uniform velocity distribution of the thrown material over the region between charges,a formula for determination of the spacing of the explosive charges is also obtained. Based on the theory of ballistics,with the consideration of all factors,such as para- meters of explosive charge,air resistance and slope of free surface etc.,another formula for calculating the maximum distance of projectiles is given as follows: L_(max)=(A_i~2)/(gW~(2m)F(s))sin2(α—)con~(2m)+(3sin(α-))/(2cos)W. With the same consideration,a method for calculating the piling of projected materials is also presented. Finally,a general idea of how to choose the best scheme of blasting is briefly des- cribed.

本文就定向爆破筑坝时爆破设计计算的主要问题进行了初步探讨.文中,首先讨论了药包规划方法和爆破程序对坝体堆高和成型的影响,并概括出确定合理爆破程序的几点原则.其次,根据定向爆破筑坝的特点和要求,认为药包间距计算应以药包间被爆岩石具有均匀初速度分布为前提,装药量的计算应考虑到斜坡的影响,并给出了相应的计算式.此外,用弹道理论法在考虑了爆破参数、空气阻力和地面坡度影响等所有因素的情况下,导出了最大抛距计算式和堆积计算方法.最后,扼要地讨论了有关最优方案的选择问题.

The research work described in this paper comprises of the following aspects: 1. By statistical analysis of response spectra of natural earthquake recordings, the predominent period under various earthquake conditions as well as relations of vertical to horizontal components of actual ground motion were obtained. 2. By producing explosive seismic waves assimilating natural earthquake, horizontal and vertical vibrations were set up in a 1/20 large scale test model, where upon the natural vibrations characteristics...

The research work described in this paper comprises of the following aspects: 1. By statistical analysis of response spectra of natural earthquake recordings, the predominent period under various earthquake conditions as well as relations of vertical to horizontal components of actual ground motion were obtained. 2. By producing explosive seismic waves assimilating natural earthquake, horizontal and vertical vibrations were set up in a 1/20 large scale test model, where upon the natural vibrations characteristics of the dam were studied. Charts showing horizontal and vertical dynamic acceleration coefficients were obtained. 3. Through action of overpowering vibration, the model was caused to rupture. Studies were made on the earthquake resistance ability of the massive-head buttress dam, results of which indicating that the highest seismic stresses appear at the top of the dam.

本文所述研究工作概括为下列方面: 一、利用天然地震记录进行了频谱特征的统计分析,得出了各种条件下的地震卓越周期以及地震最大振幅中竖向分量和水平分量的比例关系。 二、利用爆炸地震波模拟天然地震,以激发大比例尺模型的水平和竖向振动。 三、通过大比例尺模型试验,研究了大头壩的自振特性,水平与竖向加速度分布和动应力分布,得到了壩休劫力系数分布图。 四、通过强震破坏试验,研究了大头壩最大抗震能力,指出壩顶部分是地震荷载最北集中的地方。

 
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