查询词典 projectile

Projectile impact and penetration in a 2D granular bed under the acceleration due to gravity was been studied by fast video photograph and acceleration sensors.

用高速摄像和加速度传感器观测方法研究物体在重力加速度作用下撞击二维颗粒床并在其中穿行的运动过程。

The simulation shows that the angular rate of moving projectile can be calculated directly by using this kind of measurement unit and the influence of the gravity acceleration on calculating angular rate and acceleration can be eliminated effectively.

计算机仿真分析显示这种测量方案直接解算的是弹体运动角速度，并可以有效地消除重力加速度分量对解算弹体运动角速度及线加速度的影响。

In this paper, acceleration versus time data of projectile penetrating reinforced concrete were recorded.

实验测试了侵彻钢筋混凝土过程中弹丸的过载情况，得到侵彻过程中弹丸的加速度时程曲线。

It is suggested that the contributions of the pre-equilibrium fission can be ignored for the projectile with low or medium incoming energy to the target in actinium family, and even with high energy to the target in sub-actinium family.

对锕系核来说，在中低能的情况下，可以忽略预平衡裂变过程的影响；而对Pb等重核来说，即使在激发能比较高的情况下，也可以忽略预平衡裂变的贡献。

The instable phenomenons of the projectile in the airdrop experiments are analyzed and

本文采用的研究方法具有通用性，对其他类型导弹的气动分析有较好的借鉴意义。

The main contents are as follows:(1) Configuration design and Experiment research The projectile configuration of penetration weapon is designed according to the technical and tactics target, including the structure design of the projectile , the structure design of the empennage and the structure design of the concrete target. The simulation experiments studying the relation between velocity and concrete intensity and penetration depth have been carried out.

主要内容如下：(1)结构设计和试验研究根据技术指标完成了子母弹侵彻战斗部模拟弹体的尺寸和结构设计，尾翼的尺寸和设计结构、靶体尺寸和结构设计，完成了模拟弹丸混凝土的模拟试验，研究靶体强度和初速度对侵彻深度的影响；通过对结构设计的研究和弹丸侵彻混凝土的试验研究，完善钻地弹设计方案。

The projectile loom uses a projectile with grippers to carry the yarn through the shed.

片梭织机使用一个带有夹子的片梭将纬纱引过梭口。

The dynamic medel and the differential equations of an unsymmetrical projectile traveling in a flexible, increasing twist rifled bore gun tube are developed in this paper. The equations can be used for the study of any case of a projectile traveling in the bore, i.

建立了非对称弹丸在挠性渐速膛线身管内的弹丸动力学模型和运动微分方程组，该方程组可用于对弹丸在渐速膛线身管内的任何情况(定心部不与膛壁接触、弹膛碰撞、贴膛)的运动进行求解。

When counting, according to the reliability data of each device, calculated each composition parts worth of terminal-sensitive projectile system is theory, it can get the task reliability of each subsystem, repassed to utilize the model of establishment can get terminal-sensitive projectile system task reliability.

计算时，依据各器件的可靠性数据，理论推算末敏弹系统各组成部件的可靠度值，可得到各分系统的任务可靠性，再通过运用建立的模型，可得到末敏弹系统的任务可靠性。

Based on the definition of benchmark angle and compensation angle,the algorithm of roll angle of projectile in fire plane is brought out and the calculating error is analyzed.The simulation is carried out for the swing of projectile and the measurement of geomagnetic signal error.

将弹丸的滚转角分解为基准角和补偿角，给出了处于射击平面内的弹丸滚转角解算方法并进行了误差分析，针对弹丸的摆动及地磁信号测量误差进行了仿真。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。