本文首次引入了凸轮机构特征圆的概念,清楚地定义说明了盘形凸轮机构运动转角的现有二种度示(度量和表示)方法;本文还给出了第三种......

The current research presents the results of experiment in situ and laboratory research with the goal of determining the......

详细介绍了一种可以在铣床上完成ＰＤＣ钻头底模成形所需要的成形机构，介绍了该机构的结构特点、工作原理以及使用该机构时各种角度的计算......

ＴＨＥＳＴＲＥＳＳＡＮＡＬＹＳＩＳＯＦＶＥＳＳＥＬＷＡＬＬＩＮＴＨＥＥＮＴＲＡＮＣＥＲＥＧＩＯＮＯＦＡＴＡＰＥＲＥＤＶＥＳＳＥＬＣｅｎＲｅｎ－Ｊｉｎｇ（岑人经）ＴａｎＺｈｅ－ｄｏｎｇ（谭哲东）ＣｈｅｎＺｈｅｎｇ－ｚｏｎｇ（陈正宗）（ＳｏｕｔｈＣｈｉｎ.........

For radar targets flying at low altitude, multiple pathways produce fade or enhancement relative to the level that would......