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- In this paper,a new dynamic driving power for vibrating drill press with piezoelectric actuator,which is composed of D/A card,magnified electrocircuit,and high voltage DC circuit. 介绍一种高压可调大功率动态驱动电源的设计,它用于高速微小孔振动钻床振动装置的压电陶瓷激振器,可以实现压电陶瓷的可控振动,其主要由D/A控制卡、放大电路、高压直流电源电路等几部分组成。
- Vibrating drilling process has widely been used in the industrial production. 振动钻削方法已在工业生产中获得应用。
- Based on analyzing the demands of small-diameter deep-hole drill for vibration drilling, a new inner-chip removal drill was designed. 分析了小直径深孔振动钻削对钻头的要求;设计了一种新型内排屑深孔钻头;分析了该钻头的结构和刃磨特点,进行了振动钻削试验。
- At six we were fallen in for drill. 六点钟我们站好队准备操练。
- By applying apparatus for piezoelectric ceramic vibration drilling, the me thod of varying feed rates in vibration drilling is used to drill the micro-hol e . 应用压电陶瓷振动台振动钻削装置,采用变进给量振动钻削法加工微小孔,并用工具显微镜对入钻定位误差和出口毛刺进行测量。
- The sound of that drill jangles horribly on the nerves. 那台钻机的声音响极了，十分刺耳。
- You'd better set a goal before you start the drill. 练习开始前，你最好设定一个目标。
- After a long drill he told the squad to fall out. 操练了好半天之后，他让这个班解散了。
- She had lots of drill in listening. 她在听力方面受过许多训练。
- This drill can bore through rock. 这台钻机能钻透岩石。
- The dentist's drill made a lot of noise. 牙钻发出很大的噪音。
- Vibration drilling possess the special function of reducing chatter vibration, thus achieving a good drilling effects. 振动钻削方法具有消减切削颤振的特殊功能,能够取得良好的加工效果。
- The resonance of sonic wave vibration is the key technology in the ultrasonic vibration drilling. 超声振动钻削中声振系统的共振是实现超声振动钻削的关键技术问题。
- What's the drill for claiming expenses? 费用报销的手续，是怎样的?
- The experiments show that the ANN systems are of high precision.It also provid es a new study and analysis method for the study of vibration drilling. 实验表明，ANN优化精度较高，为振动钻削研究提供了新的分析方法与途径。
- The class is chopped up into small groups for oral drill. 为进行口语训练，班级分成为几个小组。
- It is shown that vibration drilling entirely changes drill-entry mechanism of common drilling,remarkably improves drill-entry spotting accuracy. 分析结果表明,振动钻削改变了普通钻削的钻入机理,显著提高了钻入定心精度,特别适合微小孔的精密和超精密加工。
- A vibrating membrane in the ear helps to convey sounds to the brain. 耳膜的振动帮助声音传送到大脑。
- The pupils filed out of the room during the fire drill. 在消防演习中，学生们排成纵队走出房间。
- A new scheme which is baed on variable parameter vibration drilling for different hole part and a variable parameter vibration drilling system is built up. 首次提出在每个孔加工的不同区段采用不同参数的变参数振动钻削的新思路，并建立了变参数振动钻削系统。
