The FL-19 has six single-shot missile tubes with an integral electro-optical (EO) target detection and tracking unit, all mounted on the rear section of an armoured light truck.

FL-19有六根导弹发射管、一套集成的光电目标探测与追踪单元，都装在轻型装甲卡车的后部。

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In case of such applications, the optical fibre cable should be laid in protective tubes and not be frequently moved.

在这些申请的情况下，光纤电缆应规定保护管，不要频繁移动。

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By using laser scanning and CCD sensor, a new optical technique can be applied in the production line for real-time measuring the diameter and thickness of glass tubes.

本文介绍一种激光扫描与CCD传感器的新技术，用于在线实时检测玻璃管外径与壁厚的尺寸。

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Though there is no reason to use Dr Knight's invention to replace existing optical fibres, it could, by varying the spacing of the air-filled tubes, make a handy filter allowing selected wavelengths (and the messages they carry) to enter or leave the waveguide while the others are contained.

ECONOMIST: New-age crystals