常用冷却空气的蒸发器分为什么?
参考答案:
表面式蒸发器;排管式蒸发器
补全对话,每空一词。
A: What colour is the tree, Lingling?
B: 1 green..
A: Do you like green?
B: Yes, I do. It's my 2 colour.
A: Why do you like it?
B: Because I like spring, and the 3 are green in spring.
A: And what is the weather 4 in spring?
B: It's 5
A.磁感应强度与通电导线受到的磁场力成正比,与电流强度和导线长度的乘积成反比
B.磁感强度的方向与F的方向一致
C.公式B=只适用于匀强磁场
D.只要满足L很短、I很小的条件,B=对任何磁场都成立