Musk explained that the company had started work three months before on a large water-cooled steel plate to be placed underneath the concrete launch pad.

马斯克解释说，该公司三个月前已经开始建造一块大型水冷钢板，放置在混凝土发射台下面。

The water-cooled central air conditioning and humidification system at the site help maintain the temperature in the building at about 20 C and the humidity at 80 percent.

现场的水冷中央空调和加湿系统，使楼内温度保持在20℃左右，湿度保持在80%左右。