Before using, first check if the protection doors are closedwell, and ensure that no person or articles under the platform of the hanged goods at the first floor.
使用前，应先检查各层防护门是否关好，并保证一楼起吊重物的平台下不能有人和物品。
2
The former method of forecasting and analysis for change of oil pressure at time of build up in closedwell can not foresee stable time and oil pressure accurately.
以往对关井恢复中油压的变化趋势预测和分析的方法，不能准确预测油压稳定时间以及稳定油压。
3
After tasting it, he chewed it well, closed his eyes, and swallowed it.