... optical log 光记录测井曲线 optical margin 光边 optical mark reader 光学符号阅读机 ...
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Optical Margin Alignment 悬挂标点
Optical power margin 光功率范围
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Not exactly--Nortel was looking at shedding the low-margin bottom of its optical-components business, saving the jazziest lines for itself.
FORBES: Lighting up Nortel
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