文
论文分享
演练场
杂货铺
论文推荐
字
编辑器下载
登录
注册
Liu Ying-fen
发表
Influence of Lead Angle and Contact Angle on Transmission efficiency of Planetary Roller Screws
Liu Ying-fen, 2014 .
Development characteristics of water flowing fractured zone of overburden deep buried extra thick coal seam and fully-mechanized caving mining
Liu Ying-fen, 2014 .