prefocus 中文意思是什麼
prefocus
解釋
初聚焦-
Electric lamps - tungsten - halogen lamps with gz9. 5 two - pin, prefocus bases and 36. 5mm nominal light center length
電燈. gz9 . 5雙插頭預聚焦燈座和36 . 5mm標定光源中心長度的鹵鎢燈 -
Projection lamps, four - pin, prefocus, base - down type, dimensions for
四腳預聚焦燈頭向下型放映燈的規格 -
Projection lamps, single - contact, medium prefocus, base - down type, dimensions of
燈頭向下型單觸點中聚焦放映燈的規格 -
Projection lamps, condenser - reflector, four - pin, prefocus - base types, dimensions for
四腳預聚焦型聚光反射器的放映燈的規格 -
Gauges of prefocus caps
預聚焦式燈頭的量規 -
Types and dimensions of prefocus caps
預聚焦式燈頭的型式和尺寸
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