n.凸緣；邊緣；輪緣；【機械】法蘭（使管子與管子及和閥門相互連接的零件，連接于管端）
v.裝凸緣
Every lens has a mounting flange with which it is attached to the camera body. 每個透鏡都有一個安裝凸緣，依靠它才能把透鏡安裝到相機上。
The bottom flange and the diaphragms must be selected carefully to match the product. 為與產品匹配，需仔細選擇底部邊緣和隔膜。
