Digital (and optical) engineers must be aware of RF parameters in product development and production testing.

数字(或光)工程师必须清楚开发和制造测试时的RF参数。

youdao

The purple emission is multi-million degree gas detected in X-rays by NASA's Chandra X-ray Observatory and the other colors show galaxies in an optical image from the Sloan Digital Sky Survey.

其中紫色喷发状物质是几百万度高温的气体，由Chandra X射线天文中心探测；其他颜色展示了斯隆数字星空调查的光学图片中的一些星系。

youdao

All of the children's footprints, along with scores more human tracks in the Khuiseb Delta, are being recorded in detail with an optical laser scanner and are to be placed in a digital archive.

所有这些儿童足迹以及在奎塞三角洲(khuiseb delta)发现的好几十个人类足迹都使用光学激光扫描仪详细记录下来存放在数字档案中。

youdao

All eight digital camera models, available in March 2011, feature Optical Image Stabilization, High Definition video recording capabilities and Panasonic's iA mode, which makes them extremely easy-to-use to help take high-quality photos.

ENGADGET: Panasonic announces Lumix GF2 pricing and availability, plenty of other models too

The PowerShot A85 - Their new four megapixel replacement for the A70 (which was the best-selling digital camera in the US last year), the A85 has a 3.2x optical zoom lens and a 1.8-inch LCD screen.

ENGADGET: Canon's new digital cameras

And the product examples you cite attest to Alcatel's U.S. market leadership in the fast-growing optical submarine network, ADSL broadband Internet access and digital-loop carrier product areas.

FORBES: Readers Say