A new type of double taper and round face impregnated drill bit is introduced. Its design principle and structure parameters are discussed. 本文介绍了一种新型金刚石钻头双锥圆唇孕镶金刚石钻头的设计原理、结构参数设计、及钻头所具有的提高钻进速度、提高钻头寿命和适应性及其他钻头可使用性。
Design Improvement of the Double Taper(DT) Decoiler on the Spiral Welded Pipe Set 螺焊机组中开卷机的设计改进
Design Calculation of Double Taper(DT) Synchronizer of Gearbox 变速器双锥面同步器的设计计算
An investigation into reducing AM-PM conversion coefficient by the double taper helix technique 双渐变技术减小AM-PM转换系数的初步研究
Dynamic characteristics analysis for double row cylindrical roller bearing with taper hole 锥孔双列短圆柱滚子轴承的动态特性分析