求翻译：8、光纤为脆性材料，应轻拿轻放，工作时不能过度弯曲，避免折断报废以及因此而产生对人体的伤害；腔内手术时，露出的裸光纤部分不得超过2mm。是什么意思？

8, the fiber is brittle materials, light-light, the work can not be over-bending, avoid broken scrapped, and the resulting damage to the human body; cavity during surgery, exposing the bare fiber part shall not exceed 2mm.

8, fiber for brittle materials, you should handle with care, the work is not over-bend to avoid broken scrap and the resulting damage to the human body; also, the surgery, when you expose the bare fiber may not be more than 2 mm .

8th, the optical fiber is the brittle material, should handle with care, when work cannot the overbending, avoid breaking off the abandonment as well as therefore produces to the human body injury; In when cavity surgery, reveals the bare optical fiber part does not have to surpass 2mm.

8, fibre for brittle materials, handle with care, work cannot be excessive bending, avoiding breaking scrapped and the resulting harm to the human body; when endoscopic, exposing the bare fibre shall not be higher than 2mm.

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