herf是什么意思

用法例句

Brief analysis of the principle and performance of high energy screw press;

高能螺旋压力机原理及性能浅析

Working Principle and Maintenance of FEP-BY02 High Energy Focus Supersonic Tumour Therapy Equipment;

FEP-BY02型高能聚焦超声肿瘤治疗机工作原理及设备保养

The relations among real efficient secondary electron emission coefficient at high energy,the incident angle of primary electron and depth;

高能有效真二次电子发射系数与逸出深度和入射角的关系

Experimental research of the performance of graded collimators in high-energy flash X-ray radiography;

高能闪光照相中陡坡准直体成像性能实验研究

This paper introduces the characteristics of the high power microwave (HPM) weapon and the forming process of the HPM electromagnetic pulse It describes the area of application of the HPM weapon in modern war, and advert to the imminency of the developmen

介绍了高功率微波武器的特点 ,简要说明了高能微波电磁脉冲的形成过程。

It is necessary to study control method of polarization of the laser in order to study the processes occurring in the active medium of the laser, to control the mode composition and power, to explain different effects associated with the polarization characteristics of the radiation,to gain high quality and high power polarized light, to exploit application of high power laser.

为了研究激光器增益介质的出光过程、控制激光模式的构成和功率,解释与激光偏振态有关的各种现象,为了能够得到高质量的高能偏振激光,进一步拓展偏振高能激光的应用前景,有必要研究激光偏振态的控制方法。

Influence of process control agent in preparation of SiC/Al composite powder by high energy ball milling;

过程控制剂在高能球磨法制备SiC/Al复合粉末中的作用研究

Influences of high energy ball milling on microstructure and properties of a new steel bonded titanium carbide;

高能球磨对新型TiC钢结硬质合金组织和性能影响的研究

Effects of low temperature heat treatment and high energy ball milling on the preparation of ultrafine alumina;

低温热处理以及高能球磨对制备超细氧化铝的影响

Cu-Al alloy powder was produced by high energy milling of Cu and Al, then mixed them together with Cu2O powder,Al2O3/Cu composite was prepared through oxidation and sintering synchronously under the protecting of N2.

采用高能球磨制备出亚稳态的Cu-1%Al(质量分数)合金粉,再将Cu2O粉与其一起进行高能球磨,然后将复合粉末压坯在N2保护炉中同时进行氧化和烧结,制备出Al2O3/Cu复合材料。

A 15%SiC_p/2009Al composite was fabricated by high energy milling powder metallurgy (PM) technique.

　采用高能球磨粉末冶金法制备了15%SiCp/2009Al复合材料,研究了球磨转速、球磨时间、加热抽真空工艺、热压成型以及热挤压比对复合材料力学性能的影响。

The aluminum matrix composites reinforced with SiC particulates were fabricated by the high energy milling in conjunction with powder metallurgy.

采用高能球磨粉末冶金技术制备了SiCp/Al复合材料 ,研究分析了该材料界面结构特点。

Influence of high-energy milling on the structure and magnetic properties of atomized magnetic powder;

高能球磨对雾化磁粉结构与磁性能的影响

Micro-nanometer ferric oxide powders were prepared by high-energy milling and then reduction with hydrogen at different temperature for different holding time.

采用高能球磨,制得不同粒度的超细氧化铁粉末,然后,分别在不同还原温度和还原时间下,进行氢气还原。

This paper studed the process and kinetics of solid -state reduction by high-energy milling at room temperature.

采用机械还原的方法以 Si/V_2O_5为原料直接制备 VO_2/SiO_2复合陶瓷粉,主要探讨了高能球磨实现固相反应的动力学条件。