Laser light itself is invisible.
But we should never look directly into a laser beam, right?
盡管肉眼看不見激光本身，但直視激光還是不行吧？
Cindy
Correct. If your eyes are directly exposed to the laser light,
they could be damaged.
說得對。直視可能會導(dǎo)致失明。
王工
What safety measures should be taken when operating a laser?
在使用激光時，需要采取哪些安全對策呢？
Cindy
There are many but definitely operators should wear dedicated
protective goggles to protect their eyes.
有很多啦，比如操作人員可以佩戴專屬護目鏡
來保護眼睛。

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