I leant over the rail of the open-sided observation car to feel the cool of the air against my face. I let my thoughts drift, lulled by the sluggish rhythm of our progress.
我倚靠在敞篷观光车的栏杆上，感受着吹到我脸上的清冷空气，火车缓慢的行进节奏让我思绪纷飞。
2
The practice of bolt support in reserved coal drift in mining pressure area is introduced, helpful conclusion is obtained through observation and analyse.
介绍了煤巷锚杆支护在动压区留巷的实践，并通过观测及数据分析，得出了有借鉴意义的结论。
3
Because in U-I model flux observation pure integration element is adopted, it brings about two problems of DC drift error and initial integration error.