Terms containing pitch reference

Subject	English	Chinese
avia.	pitch reference	俯仰基准
mech.	pitch reference cylinder	分度圆参考柱面
auto.	pitch reference cylinder	基准节圆柱面
el.	pitch, roll and azimuth reference system	俯仰、侧滚与方位参考系统
avia.	pitch, roll, azimuth reference system	俯仰、横滚与方位参考系统
mil., air.def.	reference pitch angle	基准俯仰角