English translation for "observation ratio study"

观察比率研究

Related Translations:

orbit observation:  轨道观测

ground observation:  地面观察

meridian observation:  中天观测子午线观测

runway observation:  跑道气象观测

project observation:  项目检查

direction observation:  方向观测

observation place:  观察位置

participant observation:  (社会学家等通过参加研究对象的活动进行的)现场观察研究。

observation instrument:  观测仪器

systematic observation:  系统观测系统观察

Similar Words：

"observation port" English translation, "observation post" English translation, "observation procedure" English translation, "observation program" English translation, "observation range" English translation, "observation reading" English translation, "observation record" English translation, "observation reduction" English translation, "observation report" English translation, "observation research" English translation