- A microscope consisting of an objective and an eyepiece at opposite ends of an adjustable tube.复显微镜：将一物镜和一目镜分装在一个可调节镜筒的两端构成的显微镜
- flying
- flying boat
- flying bomb
- flying bridge
- flying buttress
- flying dragon
- Flying Dutchman
- flying field
- flying fish
- flying fox
- flying frog
- flying gecko
- flying gurnard
- flying head
- flying jib
- flying lemur
- flying lizard
- flying machine
- flying mare
- flying opossum
- flying phalanger
- flyings
- flying saucer
- flying squad
- flying squirrel