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本文对当前煤矿院校采煤专业使用的教材《煤矿通风与安全》151页例1提出几点意见供讨论,鉴于水平所限,谬误在所难免,请予指正。 一、算例计算不精确或有误差 该算例取值不准确或有误差之处较多,经查对共有41处,其中表7—1有38处,表7—2有3处。当然,有的属连锁误差。 现将重新计算之结果列出。(仍标以表7—1、7—2)其中与原书相异之处在数值下面标以横线,以示区别。
In this paper, the current coal mining coal mining materials used in teaching “Coal Mine Ventilation and Safety” 151 Example 1 put forward some comments for discussion, given the level of limitations, the fallacy is inevitable, please correct me. First, the calculation is not accurate or inaccurate The example value is not accurate or there are many errors, the investigation of a total of 41, of which Table 7-1 has 38, Table 7-2 has 3. Of course, some are chain errors. Now recalculate the results listed. (Still marked in Table 7-1, 7-2) where the difference between the original book marked with the horizontal under the value to show the difference.