[ 第三人称单数 prefocuses或prefocusses 现在分词 prefocusing或prefocussing 过去式 prefocused或prefocussed 过去分词 prefocused或prefocussed ]
prefocus lamp 聚光灯泡 ; [电] 定焦灯 ; 聚光灯
prefocus plate [光] [摄] 定焦盘
prefocus lens 预聚焦透镜
prefocus base 预聚焦式灯头
Gauges of prefocus caps 预聚焦式灯头的量规
prefocus cap 预聚焦式灯头 ; 聚光灯头
prefocus lamp base 预调焦灯座
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