prefocus

美 　英

• 網(wǎng)絡(luò)預(yù)先對(duì)焦；預(yù)先封焦；預(yù)調(diào)焦

例句

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

適用于廣場(chǎng)、機(jī)場(chǎng)、碼頭、車站及廣告牌、展覽館等聚光照明。

Position camera on tripod and prefocus on inside of tank.

把相機(jī)固定于三腳架，預(yù)先對(duì)水缸內(nèi)部調(diào)焦。

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

電燈.聚光燈.四腳聚焦投影燈反射器.規(guī)格

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

電燈.燈頭向下單觸點(diǎn)中聚焦投影燈.規(guī)格

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

放映燈規(guī)格.四腳預(yù)聚焦燈頭向下型

Types and dimensions of prefocus caps

預(yù)聚焦式燈頭的型式和尺寸