Light sources adopt halogen bulbs as six rotators and one flash lamp.
光源采用优质卤素灯泡6只作转灯，1只作射灯。
Light sources adopt halogen bulbs for four rotators and four flashing bulbs which distributing symmetrically.
光源采用优质卤素灯泡，4只作转灯，4只作射灯，对称分布。
Lead as impurity in RIG Faraday rotators used for fibre optic communications systems.
用于光纤通讯系统法拉第旋转器中作为杂质的铅
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