Outlets along the side walls and the center of the ceiling divide the air for symmetrical supply.
答案解析
解析：
### 关键点分析：
1. **Outlets**（出口）：
- 这里指的是空气流通的出口，通常在空调或通风系统中使用。
2. **Side walls and the center of the ceiling**（侧壁和天花板中心）：
- 这说明这些出口的位置分布在房间的侧壁和天花板的中心，目的是为了更好地分配空气。
3. **Divide the air for symmetrical supply**（将空气分离以实现对称供应）：
- 这里的“symmetrical supply”是关键，意味着空气的供应是均匀和对称的。
### 选项解析：
- **A. 为了供应充足，沿着侧壁和天花板中心的出口将空气分离。**
- 这个选项强调“供应充足”，但题干中并没有提到“充足”这个概念，而是强调了“对称”。
- **B. 为了供应不过量，沿着侧壁和天花板中心的出口将空气分离。**
- 这个选项提到“不过量”，虽然有一定的道理，但同样没有直接反映出“对称”的概念。
- **C. 为了供应对称均衡，沿着侧壁和天花板中心的出口将空气分离。**
- 这个选项准确地反映了题干的意思，强调了“对称均衡”，与“symmetrical supply”相吻合。
### 深入理解：
想象一下一个房间，如果我们只在一个角落安装一个空气出口，空气可能会集中在那个区域，导致房间的另一侧空气流通不畅，造成温度不均匀。这就像在一个舞台上，只有一个演员在表演，观众只能看到他，而其他演员则被忽视了。
而如果我们在房间的侧壁和天花板中心均匀地设置多个出口，就像在舞台上每个演员都有自己的位置，大家都能看到彼此，这样空气就能均匀地分布到整个房间，确保每个角落都能感受到舒适的温度。
### 结论：
因此，正确答案是 **C**，因为它最准确地反映了题干中关于空气对称供应的意图。
相关知识点：
侧壁顶心出口分离空气供对称
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