It all starts in the basement. This line leads from a hatch in the coal room to this pipe system here.
越狱从地下室开始，这条线路是从暖气室的一个出入口通到这个管道系统。
2
But industry experts have yet to reach a consensus on this claim, as coal-fired central heating often leads to smoggy weather.
不过业界专家们并未就此达成一致，因为燃煤集中供暖往往会导致雾霾天气。
3
Although the coal conveying ability is increasing with the appearance of double-motor driving system, it leads to unbalanced power problem of double motor.