A theoretical model describing U shaped downhole heat exchanger ( DHE ) performance is presented in this paper. 建立一个新的描述“U”型管式地热井下换热器的导热模型。
A series of flanged and multi-angle U shaped parts were designed in allusion to influences on springback by multi-angle to conduct punching experiments. 针对U形(USH)件中多角对回弹的影响,设计了一组带翻边、不同弯角数的U形(USH)件进行实际冲压成形试验。
Adaptability Analysis of U Shaped Horizontal Connected Wells in CBM Exploitation in Liulin Area, Hedong Coalfield U型水平连通井在河东煤田柳林地区煤层气开发的适应性分析
The strengthening results of reinforced with three side ( U shaped ferrocement put onto the tension face and two profile faces ) and one side ferrocement had been analyzed. 加固的形式包括U形(USH)三面加固及一面加固两种。
Yarn is punched through a polypropylene backing with needles and then cut to form U shaped tufts. cashmere-like acrylic machine knitting yarn 草丝在簇绒机上被切割成U型,针织在聚丙烯底衬上。仿羊绒腈纶机织绒线