dipvergence
(1)双目垂直角差
(2)高低发散差

• fine line
• finely-honed
• fine measuring instrument
• fineness
• fine oil stone
• fine particle
• fine pitch
• fine pumping
• fine-range scope
• fine structure
• fine thread
• fine thread screw
• fine tuning
• fine vacuum
• fine wheel
• finger
• finger-impu system
• fingerprint
• fingerprint cameras
• fingerprint indentification
• fingertip control
• fining
• finish
• finished prodcut
• finishing allowance