avoid exposure laser laser light emitted from this aperture

avoid exposure laser laser light emitted from this aperture laser radiation when open AVOID DIRECT EXPOSURE TO BEAM 求翻译：Avoid exposure-laser radiation is emitted from this aperture 英语翻译• Clear warnings and precautions to be taken to avoid possible exposure to laser and collateral radiation above Class 1,and other hazards• A schedule of maintenance necessary to keep the product in compliance• A list of laser Gently spot clean with a damp cloth and avoid excessive exposure to water的中文 utero exposure exposure是什么意思 systemic exposure exposure to 什么是 Nd:YAG laser laser beam divergence laser screwdriver是什么东西 里面exposure什么意思 risk exposure何意? exposure 什么意思? selective exposure是什么意思 exposure怎么读,是什么意思?