mapping between the operation space and pattern space
Space vehicle
空间飞行器
太空航行器
太空载具
宇宙飞行器航天器
太空交通工具
宇宙飞行器
航天器
空间飞船
宇宙飞船
太空載具
空天飞机
太空车
飞行器
太空船
Commercial vehicle operation systems
field operation vehicle
operation vehicle speed
vehicle operation engineering
separating dry space from moist space
Operation method about “three incision” operation of esophagus cancer
(Generalized) Ultrametric Space
(The Symbol is abbreviated)-fuzzy metric space