prefocus

prefocus

美 　英

• 网络预先对焦；预先封焦；预调焦

例句

Apply on the public square , airport , wharf, station, building lighting , advertisement plaque, exhibition center etc prefocus lighting .

适用于广场、机场、码头、车站及广告牌、展览馆等聚光照明。

Position camera on tripod and prefocus on inside of tank.

把相机固定于三脚架，预先对水缸内部调焦。

Electric Lamps - Condenser-Reflector, Four-Pin, Prefocus-Base Projection Lamps - Dimensions

电灯.聚光灯.四脚聚焦投影灯反射器.规格

Electric Lamps - Single-Contact Medium Prefocus Base-Down-Type Projection Lamps - Dimensions

电灯.灯头向下单触点中聚焦投影灯.规格

Dimensions for Projection Lamps - Four-Pin, Prefocus, Base-Down Type

放映灯规格.四脚预聚焦灯头向下型

Types and dimensions of prefocus caps

预聚焦式灯头的型式和尺寸