| 1. | These characteristics make pmts have very vast applications
这些特点使并联机床具有广泛的应用前景。 |
| 2. | The results show that the technique is advanced and is of benefit to real - time control for pmts
仿真表明这种计算和控制方法精度较高，是一种可行性较强的计算和控制策略。 |
| 3. | Besides , it was founded that the compatible of the system consisted of mts - mma copolymer and pmma was better than that of pmts / pmma
应用dma ， dsc ， uv及水滴接触角等测试手段表征了有机硅聚合物-聚甲基丙烯酸酯梯度膜的性能。 |
| 4. | Parallel machine tools ( pmts ) , also know as virtual axis machine tools ( vamts ) , are a new kinds of machine tools which came into being since 1990 ' s
并联机床即虚拟轴机床，是二十世纪90年代中期问世的新型数控机床，是机器人技术与机床相结合的产物。 |
| 5. | Pmts have following advantages : very good stiffness weight ratio , large feed speed , high machine precision , simple mechanical structure etc . compared with the traditional machine tools
与传统的数控机床相比，并联机床具有刚度比重大、响应速度快、加工精度高、机械结构简单等优点。 |
| 6. | Pmts enjoy following advdsges over tr8ditional five - coordinates nc machine tools : high stiffness weight ratio , high feed speed , high machining precision , high additional technology value et ai
并联机床与传统五坐标数控机床相比有如下优点：刚度重量比大响应速度快加工精度高环境适应能力强技术的附加值高。 |
| 7. | The equations of workspace boundary surfaces for double - octahedron variable geometry truss pmts are derived based on surface analysis method . the projection and section curve grapha of workspace boundary surfaces for double - octahe
推导出了zrps ztps型及m 3tps型并联机床运动学分析的一阶和二阶影响系数矩阵，得到了其运动学模型。 |
| 8. | Forward displacement analysis for lps + 3tps , lpt + 2tps , lpps + 4tps type pmts are performed based on result elimation method . closed form solutions for forward displacement of these hybrid type pmts are derived , numerical examples are given for illustration
基于结式消元法分别对1ps + 3tps型、 1pt + 2tps型和1pps + 4tps型并联机床进行了位置正解分析，获得了封闭形式的解析解。 |
| 9. | These analy ' tical expressions are solved using homotopy cofitinuation algorithjns , all solotions of singularity configuration are obtained . a numerical exarnple of singularity configuration analysis for double - octahedron variable geometry truss pmts is given . ,
以r 3tps型并联机床为对象，提出了一种精度建模方法，该方法将精度建模的问题转化对应的“虚拟机构”的运动分析问题。 |
| 10. | Then , surface tension measurements on various solution of pmma , pmts , mts - mma copolymer indicated that the change of polysilane ' s surface tension was not significant when its concentration was lower than 30 % , while that of polyacrylate ' s varied much more significant yet
随之，用溶液聚合法制备了具有不同分子量及分子量分布的有机硅聚合物、有机硅-丙烯酸酯共聚物( mts - 35 、 mts - 65 )和甲基丙烯酸酯聚合物。 |
