The channelvariable used to access the RSS channel information (description for example).
用于访问RSS通道信息的channel变量(例如，description)。
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The point of this measurement was making use of infrared signal, on one hand which was the reference variable, on the other hand which was the channel for the data.
The experiment has studied the heat transfer characteristic inside U shaped variable cross-section channels with different rib pitches, The channel is the middle part of a gas turbine blade.