Wednesday, February 7, 2024
问题:空气的气体常数Rg=287J/(kg⋅K),温度t=17℃,则空气中音速a为()。...
Tuesday, January 23, 2024
问题:电厂蒸汽动力循环,水在锅炉中的定压汽化过程为()。...
Wednesday, February 7, 2024
Wednesday, February 7, 2024
Tuesday, January 23, 2024
Wednesday, February 7, 2024
Wednesday, February 7, 2024
Wednesday, February 7, 2024
问题:当流体机械并联运行时,其总性能曲线为在()条件下,并联流体机械对应工作点的流量之和。在实际运行中,每个并联流体机械的出口压力应该(),且()管网的阻力。同时要注意管网阻力()。...
Tuesday, January 23, 2024
Wednesday, February 7, 2024
Wednesday, February 7, 2024
问题:相对湿度是绝对湿度与相同温度下最大的绝对()的比值。...
Wednesday, February 7, 2024
问题:()—中国对城市环境管理所规定的不准燃煤的地区。...
Wednesday, February 7, 2024
问题:相对湿度是绝对湿度与相同温度下最大的绝对()的比值。...
Wednesday, February 7, 2024
Wednesday, February 7, 2024
Wednesday, February 7, 2024
问题:什么是时间常数?用热电偶测量波动着的气流温度时如何提高测量精度?...
Wednesday, February 7, 2024
Wednesday, February 7, 2024
Wednesday, February 7, 2024
问题:熵方程中一般包括哪两个部分?每部分的符号特征是什么?...
Wednesday, February 7, 2024