However, because of the new high-speed networks based on fiber optics, there may not be a need for any error control at this layer.
然而，随着新的基于光纤的高速网络的出现，在这一层上不必再进行错误控制了。
Matsubayashi Optics focuses its products and sales on prism lens, flat mirror and the product of multi-layer coated. Its customers include well-known optical companies.
公司主要生产和销售棱镜、透镜、平面镜及各类光学产品，是世界多家知名光学企业的供应商。
Matsubayashi Optics focuses its products and sales on prism lens, flat mirror and the product of multi-layer coated. Its customers include well-known optical companies.
公司主要生产和销售棱镜、透镜、平面镜及各类光学产品，是世界多家知名光学企业的供应商。
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