分别用固定长度保偏光纤和可变光延迟线实现偏振模色散(PMD)补偿的实验。
Experiments of compensation for PMD were done using fixed length of PMF and variable optical delay line, respectively.
它们非常适合大型固定机械，清除生产线、分模和组装以及不动产，机械，工作引发输送线，产品装配，以及其他工厂的维护和操作。
They are ideal for servicing large, immovable machinery, working off a conveyor line, product assembly, and other plant maintenance and operations.
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