第一类、第二类Painleve方程
first and second Painleve equation
按带卷的错误统计
error statistics by tape volume
ESTV
按卷错误统计
error statistics by volume
ESV
磁带错误统计
TES Tape Error Statistics
统一统计理论
unified statistical theory
骨性二类错
skeletal class ⅱ malocclusion
第一第二系弹簧挠度比
ratio of spring deflections of primary & secondary