This paper analyses detailedly some problems that the beginner often meet with in using Protel 99,such as sheet template manage,hierarchical circuits design,flexible using of the global revision function,auto annotation and grouping components,setting up internal planes,inserting circuit schematics into WORD document,etc.
深入分析了一些初学者使用 Protel 99设计软件时常见的技术问题 ,如图纸的模板管理、层次电路图设计、整体修改功能的灵活运用、自动标注和元件合并、如何建立内电层及原理图嵌入 WORD文档等等问题 ,结合作者几年来的教学及 PCB设计经验 ,给出了解决这些问题的方法。
Through comparison of different turning method, such as wet process shaping and joinning,one piece integral turning and numerical control turning,the advances of numerical control are described,such as simple service,size precesion,light bahour power etc.
通过湿修湿接、整体立修与数控修坯的对比 ,重点阐述其在应用中具有操作简单、尺寸精确、劳动强度低等优点。
ECM cathode design using numerical simulated cut -and - try
基于正问题数值求解模拟“试验修整”的电解加工阴极设计
Experimental Research on Grinding Temperature of ZrO_2 in Ultrasonic Grinding Dressed by Elliptic Vibration
椭圆振动修整超声磨削ZrO_2温度试验研究
bench adjustment
机架调整，试验台上调整
Experimental Study on Truing and Dressing Bronze-bonded Diamond Grinding Wheel with Laser and Its High Speed Grinding Capability;
青铜金刚石砂轮激光修整技术及其高速磨削性能的试验研究
The Experiment and Numerical Simulation Research on Truing and Dressing of Bronze-bonded Diamond Grinding Wheels by Acoustic-optic Q-switched Nd:YAG Pulsed Laser;
声光调Q Nd：YAG脉冲激光修整青铜金刚石砂轮试验及仿真研究
Truing and Dressing Bronze Bond Diamond Wheels by Laser and the Experimental Study on Its High Speed Grinding Capability;
激光修整青铜金刚石砂轮及其高速磨削性能的试验研究
Experimental Study on Laser Trimming and High Speed Grinding's Performance of Resin Bonded CBN Super-abrasive Wheels;
树脂CBN砂轮激光修整及其高速磨削性能的试验研究
Shipyard shall sort out the trial record and compile the experiment report after test.
试验后船厂整理试验记录并填写试验报告。
motor-testing and regulating apparatus
发动机试验和调整仪
Research and Contrast Experiment on Dressing Dish Diamond Grinding Wheel with Diamond Powder Sintered Bar and Cup Wheel
金刚石微粉烧结棒与杯形砂轮修整碟形金刚石砂轮的对比试验研究
To manipulate unskillfully or experimentally.
试修很不熟练或试验性地摆弄
On results correction of standard tests in gradation crushed stone test of expressways
高速公路级配碎石试验段中标准试验结果修正
Function test and adjust error for log on sea trial.
航行试验中计程仪效用试验及误差调整。
ORTHOGONAL TEST METHOD AND ITS APPLICATION IN COMBUSTION ADJUSTING TEST OF CFB BOILERS
正交试验方法在CFB锅炉燃烧调整试验中的应用
Trial Scheme to Improve Minor Repair Service
改善公屋小型维修服务试验计划
revision of the Binet-Simon scale.
修改比奈西蒙测验法的测试。
Test Results and Accuracy Analysis of the Terminal Correctional Sub Projectile Sensor
末修子弹敏感器试验结果及精度分析
Research on Repairing Concrete s Crack Through Embedded Pipe;
预埋管灌浆修补混凝土裂缝试验研究
