His classroom with 23 children now has lights, ceiling fans and a secure roof.
他的23位学生上课的教室现在有了电灯、吊式电扇和安全的屋顶。
This oval roof really protects each of your fans from bad weather.
这个椭圆形的屋顶真正保障了你的每一个球迷免受恶劣天气的影响。
Thee area must have constant air movement: Ceiling fans, wall fans, roof vents, etc.
核实工厂的生产区域是否有相关设施来确保经常性的空气流通：如吊扇，壁扇，楼顶通风口等。
Thee area must have constant air movement: Ceiling fans, wall fans, roof vents, etc.
核实工厂的生产区域是否有相关设施来确保经常性的空气流通：如吊扇，壁扇，楼顶通风口等。
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