cooling efficiency的用法和样例：
例句
- Exhaust and sprayed water manifold completely in stainless stet with high surface area cooling lack -et.
排气管及歧管用高品质不锈钢材料，有极高的冷却效率。 - And the spanwise cooling effectiveness is improved significantly when the distance between the two small coolant jets is longer and the blowing ratio is higher.
在各吹风比条件下，气膜孔下游有射流小孔时，冷却效率都有一定的提高，并且射流小孔间距较大时对两气膜孔中心线之间的横向平均冷却效率改善较大，吹风比较大时，效果更明显。
