用画线单词的对应词填空。   

1.This T-shirt is white. That one is _____.

2.My ruler is long. His ruler is _____.

3.Please _____here, Jeff. Don't go there(那里)。

4.They sell these shorts for only  ￥2. Mary _____ some shoes.

5.This big sweater is ￥12 dollars. That _____sweater is only 5 dollars.

汽轮机大修后启动时，汽缸转子等金属部件的温度等于室温，低于蒸汽的饱和温度。所以在冲动转子的开始阶段，蒸汽在金属表面凝结并形成水膜，这种形式的凝结称为膜状凝结。