17 日栖霞笏山金矿井下回传纸条 12 人都在，另有 10 人情况不明，还有哪些信息值得关注？ 更正！22人并没有全部找到，只是确定了12人的下落，另外还有10人下落不明新闻里几个重要的关键点：1.矿工…
翻译！！ Determine the suction pump highIn mine drainage water in the actual height must be less than or equal to allow a high degree of water.To ensure that the pumps to work，the results of calculation should be rounded down to decimal parts and rounded，if the water is less than 3.5 m high around，should consider supporting pump water or other measures to ensure that the pumps work properly.6.Determine the type pumps，piping system and the number of TaiwanTo meet the reasonable working conditions under the premise that if two(including the above)models of pumps and piping system(two kinds diameter and above)are to meet drainage requirements were calculated device efficiency，high-efficiency device to select the pump And the piping system as optimization of the drainage equipment.7.Estimates for economic indicatorsThe main drainage costs including electricity，depreciation expenses，wages，maintenance and other costs.The remaining programme of economic accounting，with tons of water 100。
《煤矿安全规程》规定，正常涌水量在1000立方米／小时以下时，井下主要水仓的有效容量 参考答案：C
