The practice result shows that the construction of optical series of courses have made great progress, and we have obtained satisfactory results.

实践结果表明，光学系列课程的建设已取得了巨大的进步，得到了令人较为满意的成果。

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The Electro Optical System (EOS) series was introduced in 1987 with the launch of EOS 650 which incorporated the world’s first fully electronic mount.

电子光学系统（EOS）系列相机是佳能1987年开始生产的， 其第一部相机是EOS650， 这是世界上第一部全电子卡口的相机。

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FIG. 6 shows an optical system that includes a series of collection optics and optical concentrators.

图6显示了包括一系列收集光学器件与光学集中器的光学系统。

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To help customers optimize their overall technical architecture and adopt next-generation transport networks, Huawei conducted the world's first 2T WDM field trial and pan- European 400G field trial in 2012, and also unveiled a series of scientific research achievements in optical transmission.

ENGADGET: Huawei tests 2Tbps data transmission over Vodafone's German network, calls it a 'first'

Like the Samsung Series 5 UltraTouch, it has no optical drive, except this guy weighs a bit less, at 3.77 pounds.

ENGADGET: Samsung Series 5 UltraTouch review: a solid, if slightly overpriced, mid-range Ultrabook

As new additions to the WB series of long-zoom models, DV series of Dual View cameras and ST series of Style Feature cameras, the new devices combine high optical performance and classic style with the enhanced connectivity of SMART Camera.

ENGADGET: Samsung launches six new point-and-shoot cameras at CES