梗丝流化床干燥设备，风室的（）分配不均匀，可通过对热风系统结构分析，找出原因，提出解决办法。
参考答案：热风
用所给单词的适当形式填空。
1.Every year, many ________ (tour) go to Zhalong to watch birds.
2.—Is drawing as difficult as swimming ?
—No, it's much ________ (easy), I think.
3.The children always enjoy ________ (they) at the weekend.
4.Speak louder, please. I can't hear you ________ (clear).
5.Tigers are ________ (protect) animals. We can't hunt them .
