定向集合

词组短语

directed set

与定向集合相关的网络例句 [注：此内容来源于网络，仅供参考]

For low permeability horizontal wells, sand jet fracturing is an effective stimulation technique which combines the advantages hydraulic jetting and hydraulic fracturing, and can be used for orientated perforation without mechanical packer.

对于低渗透水平井，水力喷砂压裂是一种有效的增产技术，它集合了水力喷射和水力压裂的优点，可以定向射孔，无需机械封隔。