Rescuers said they would resume drilling a separate shaft as a back-up plan in case of problems with the first one.
救援人员称，作为备用他们将会重新开钻另一口竖井，以防第一口竖井出现问题。
The retrofit plan of the seal at the shaft end of the petroleum gas compressor and its result were presented.
介绍了富气压缩机轴端密封的改造方案及其效果。
And the selected dynamic part takes the direct driving plan with hollow hydraulic motor and has the advantages of light, cheap and small volume in the direction of shaft.
动力头采用中空式液马达直接驱动方案，具有重量轻、成本低、轴间尺寸小等优点。
The measure method of leading in the elevation to shaft, and the choice and the calculation of measure plan are introduced.
介绍了竖井导入标高的测量方法及导入标高测量方案的选择和计算。
The improvement plan, work principles and reform result on electric control system of main shaft hoist in Linhuan Coal Mine are introduced, and the result is fine.
介绍了临涣煤矿主井提升机电控系统的改造方案、工作原理及改造效果，经过改造后的电控系统效果良好。
The tombs (98ldm2and2000ldm4) lie in the west of the graveyard at Yuandingshan. About20m from each other, both tombs have a vertical earthen shaft of a rectangular plan with rounded corners.
编号为98ldm2、2000ldm4的2座墓葬位圆顶山墓地西侧，两墓相距约20米，均为圆角长方形竖穴土坑墓。
The tombs (98ldm2and2000ldm4) lie in the west of the graveyard at Yuandingshan. About20m from each other, both tombs have a vertical earthen shaft of a rectangular plan with rounded corners.
编号为98ldm2、2000ldm4的2座墓葬位圆顶山墓地西侧，两墓相距约20米，均为圆角长方形竖穴土坑墓。
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