问题
问答题 简答题
层燃炉的原理
答案
参考答案：
将粒状煤放在某种金属支撑物上，形成一定厚度的燃烧层，并将燃烧所需空气从支撑物下部通入、使煤与空气燃烧过程处于气固两相流动中的固定床状态。
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层燃炉的原理
参考答案：
将粒状煤放在某种金属支撑物上，形成一定厚度的燃烧层，并将燃烧所需空气从支撑物下部通入、使煤与空气燃烧过程处于气固两相流动中的固定床状态。
| 补全对话（其中有两项多余） | |
B: 1 A: For your daughter? Look, the shoes are really nice. Do you like them? B: Yes. But I'm afraid my daughter doesn't like the color. 2 A: Sure. There are different kinds of shoes over there. What color does she like? B: 3 And black is her favorite. A: What size does she need? B: Size 9.Let me see. Um, this pair of shoes must fit her. 4 A: They are not expensive, only 199 yuan. B: That would be fine. 5 Here is the money. Thanks very much! A: You are welcome. |