normal end标准端normaladj.正常的；正规的；精神健全的n.常态；标准normal beam method法向柱法Normal appetite.食欲不常。normal water level正常水位,常水位,标准水位normal probability常态率normalizing signal规范化信号Normal haemostasis正常止血normal institution正式制度normal burden rate[经] 正常制造费用率normal illuminance正常照明normal orientation标准方位,正常定向

1. Reflection will fall within a narrow wedge on the plot that is centered on its vertical axis.
   反射波落在图上以垂直轴为中心的一个狭窄的楔状带内。