Besonderhede van voorbeeld: -499399992400301708

English

(2) When the machine does not start to work, cover the field of the lens cap to prevent dust contamination of optical lenses; if it is focusing mirror surface is contaminated, it should remove the focusing mirror clean its lower surface.

Chinese

(2)设备不工作时,要将场镜镜头盖盖好,防止灰尘污染了光学镜片;如果是聚焦镜的表面被污染,应该卸下聚焦镜清洗其下端表面。