A second channel is commodity prices.

第二个渠道是商品价格。

youdao

This makes the device suspend itself and send the current value of the multiplying factor to the controller over a second channel.

这使设备中止自身，并把乘数的当前值通过第二个通道发送给控制器。

youdao

"Well,I will not let you put yourself or this bar in danger.I won't." "True Blood" has completed its second season on the cable channel HBO.

VOA: special.2010.01.20

The second channel is a traditional B2C site that sells education products.

FORBES: The Fuzzy Math Behind Some Facebook Like Campaigns

It promises to be the fastest network yet, providing fixed and mobile broadband service and can deliver up to 40 megabits per second per channel up to 30 miles away from a base station.

FORBES: Magazine Article

Standardized by the Advanced Television Systems Committee and formally adopted as the ATSC Mobile DTV Standard, the new technology allows broadcasters to use a portion of the existing 19.4 Megabit-per-second DTV channel capacity to transmit data with extremely robust characteristics suitable for mobile, pedestrian and handheld applications.

ENGADGET: LG's glassesless 3D Mobile DTV eyes on (update: video)