大家在查： observation of plant appearance observation point observation room Observatory at Nice Observer Mode Observation Accuracy observation ability obliquus superior Oblique flying pulse obligatory diapause

observation of crustal movement

地壳运动监测（observation of crustal movement）是为监测地壳长期的、缓慢的构造运动（如大陆和海洋的形成、古大陆的分 …