In a heavy downpour, however, the park land that is next to the river doubles up as a conveyance channel, carrying the water downstream.
而在降雨时节，紧邻河流的公园区域便充当了输水渠道，输送水体向下游流动。
2
Classroom teaching is the main channel of carrying out new curricular, while the teaching evaluation system has a directive function of classroom teaching.
课堂教学是新课程实施的主渠道，而课堂教学评价又对课堂教学起着强烈的导向作用。
3
Carrying out a new channel encryption method based on chaotic encryption, and employing this method to develop a key text P2P transmission system.