信道

xìn dào de róng liàng

信道的容量

channel capacity

xuǎn zé xìn dào

选择信道

channel selection

dà xíng jiàn zhù wù de xiāo fáng xìn dào yǒu jù tǐ de yāo qiú

大型建筑物的消防信道有具体的要求。

Large buildings have specific requirements for fire-brigade access.