作短暂休息 meaning in English

take rest

You should not observe for more than four hours during any one night , since the accuracy of your data will reduce when fatigue takes hold . to keep you alert and efficient , take a break and consume some food . warm clothing is necessary to keep your body warm
每一次观测时间的长度最好定为一小时，每一晚的观测不应多于四小时，以免身体疲倦而影响观测结果，而每段观测后应有时间作短暂休息及进食，以维持精神，增加工作效率。