The technician replaced the scratched ocular before shipping the microscope back to the lab client.

技術人員在把顯微鏡寄回給實驗室客戶之前，先更換了刮傷的目鏡。

Our catalog lists a spare ocular for every telescope model we sell online.

我們的型錄為網路上販售的每一款望遠鏡都列出了備用目鏡。

During the factory tour, guests took turns looking through the ocular of the new inspection scope.

參觀工廠時，來賓輪流透過新檢測鏡的目鏡觀看。