电子工业出版社:《LabVIEW大学实用教程》参考书籍(PDF电子版)LabVIEW大学实用教程(第三版,[美] Jeffrey Travis、Jim Kring)LabVIEW for Everyone:Graphical Programming Made Easy and Fun, Third Edition
A reference frame consists(1)a coordinate system and(2)a set of synchronized clocks distributed throughout the coordinate grid and rest with respect to it