光导管可采用有内反射涂层的空心管轴，或采用光导纤维技术实现。

These can be hollow shafts or ducts with reflective internal finishes or may use fibre-optic cable technology.

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光导管可采用有内反射涂层的空心管轴，或采用光导纤维技术实现。

These can be hollow shafts or ducts with reflective internal finishes or may use fibre-optic cable technology.

youdao