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- Without the existence of a concrete target, there cannot be photography. 如果没有一个具体的被拍摄目标,摄影也就无从谈起。
- Frew D.J.等,Penetration of concrete targets with ogive-nose steel rods[J],Int J Impact Egn 1998,21(6):489-497. 徐孝诚.;动能侵彻子弹对混凝土靶贯穿深度预估研究[J]
- The paper discusses experimental results of launching truncated-ogive-nose earth penetrating weapon into concrete targets. 介绍了截卵形弹头钻地弹对混凝土靶的侵彻试验研究结果。
- Three-dimensional(3D) numerical simulations of impact and perforation of concrete targets by projectiles have been performed by incorporating FEM with SPH algorithm. 利用FEM和SPH算法相结合给出弹体冲击和贯穿混凝土的三维数值模拟。
- At the same time, using reduce scale theory, computation method and analysis results of the penetrability are presented for standard earth penetrating weapon for concrete targets. 利用缩比理论，给出了标准钻地弹对混凝土靶侵彻性能的计算方法和分析结果。
- A concrete material model for penetration computation was presented, and the ogive-noded rod projectile penetrating concrete target was simulated by a 3D finite element program. 摘要介绍了一种适用于侵彻计算的混凝土材料模型。通过所建的有限元程序对杆弹侵彻混凝土靶进行了数值模拟。正侵彻的计算结果和实验结果具有较好的一致凌。
- The laboratory and field tests of the scale WHA-ballast EP penetration have been conducted. The concrete target and discarding sabot used in the experiments are designed. 设计了实验用靶、可分离弹托和尾翼,成功进行钨镇重钻地弹缩比弹侵彻混凝土靶的实验室实验和外场实验,并进行了相同条件下普通钻地弹缩比弹对比侵彻实验。
- The theory of penetrating concrete targets was applied to investigate the resistance of EPW.The factors having effects on penetration resistance were obtained.The boosting process was also analyzed. 该文应用弹丸侵彻混凝土靶理论，对弹丸侵彻混凝土时所受阻力进行分析，得到影响弹丸侵彻阻力的因素，并对助推钻地弹的侵彻运动过程进行研究。
- The strength parameters of the concrete target was derived based on the quasi-static cavity expansion theory and then was applied to differentiating penetration models. 其次，基于静态球形空腔膨胀理论求解出混凝土靶体的强度参数，并将其应用于侵彻模式的判别。
- The calculated examples have shown that the combination algorithm of FEM with SPH and the related code could be used to simulate the impact and perforation of concrete targets by projectiles. 计算结果与实验结果对比表明，FEM和SPH算法相结合及编制的程序能有效模拟弹体对混凝土的三维冲击和贯穿过程。
- The elastic-plastic code that can be used to analysize the process of the projectile impacting concrete target with high velocity has been prepared by combination of FEM with SPH algorithm. 摘要将有限元方法与光滑粒子动力学方法相结合，编制了弹、塑性弹丸冲击混凝土的计算程序，其中给出具有人工动量输运功能的滑移面算法。
- The concrete walls are reinforced with steel rods. 混凝土墙是用钢筋加固的。
- We need a hoist to lift the concrete blocks. 我们需要一台起重机来吊起混凝土块。
- The machine rests on a bed of concrete. 机器安装在混凝土基座上。
- SIMILARITY STUDY OF THE PENETRATION DEPTH FOR THE CONCRETE TARGETS 混凝土靶中侵彻深度的相似性研究
- That new concrete building is an abomination. 那座新混凝土建筑是个讨厌的东西。
- Semi-empirical method of penetration into concrete targets 混凝土靶侵彻计算的半经验法
- The road was paved with concrete. 路面由混凝土铺成。
- Have you got any concrete proposals? 你有没有具体的建议呢?
