这是一本关于地名的词典.This is a dictionary of place name.凡本书提及的人名、地名均编入索引.All persons and places mentioned in this book are indexed.你可以查地名字典.You can consult a dictionary of place names....
滚齿刀具无需筛板, 粉碎颗粒度均匀,粉尘含量极少.Rotary cutters need no screen, but produce consistent grain size , low powder contain.采用旋流板塔替代原系统的筛板塔.The sieve - plate tower was substituted by spiral flow inducing tray tower.简要介绍了筛板塔在工程中的应用.A ...