介绍了隔热用酚醒泡沫塑料的原料、助剂,生产工艺及设备,并列举了该产品的一些生产实例。
The materials, additives, production technology and equipment used for phenolic foam are introduced. The production examples are also given.
当时,该航班的乘客们都在位置上睡觉,突然,他们被击中飞机的闪电的爆裂声震醒。
The passengers of the flight were sleeping in their seats. Suddenly they were jolted awake by a crack of lightning which seemed to strike the airplane.
应用推荐