47

D = 1 (meter)/ f (meter) , 所以D沒有單位

f = focal length

Partial percutaneous discectomy for treatment of thoracolumbar disc protrusion: retrospective study of 331 dogs

Ocular effects of topical 0.03% bimatoprost solution in normoensive feline eyes

Regnier A, Lemagne C, Ponchet A, Cazalot G, Concordet D, and Gelatt KN

Fentanyl or midazolam for co-induction of anaesthesia with propofol in dogs

Veterinary Anaesthesia and Analgesia, 2008, 35, 463-472