The heating performance of a water-to-refrigerant type ground source heat pump system is represented in this paper under......

以中嘉早17、中早39、泰优390和汕优46为材料,研究了欣庆凹凸棒复合微生物肥以及与调节剂的配合施用对水稻的生长发育、产量以及水......

结合某矿用泵泵轴疲劳失效实例,阐明了泵轴疲劳失效的力学机理。基于断口形貌分析和理化性能测试,详细论述了影响泵轴疲劳失效的主......