Two kind of separated perforating and pulse fracturing composite charges are studied.论述了低渗油气层的地质特征;研究了两种分离式射孔脉冲压裂复合弹.Macroscopic deviations from isotropy occur due to bedding, schistosity and also sometimes fracturing.与各...
Macroscopic deviations from isotropy occur due to bedding, schistosity and also sometimes fracturing.与各向同性相差很大的情况往往产生于层理, 片理,某些时候则由于断裂所造成.Therefore, CNOOC's proposed drilling fracturing with reasonable sanding recov...
Cloisonne items range from decorative objects to articles for daily use.景泰蓝制品多种多样,有供装饰的,也有供日常使用的.How about this artistic tapestry and this cloisonne vase?这件艺术挂毯和这个景泰蓝花瓶 怎么样 ?This factory produces China � � s traditional ...
She instilled in the children the virtues of good hard work, and making the best of what you have.她慢慢给孩子们灌输勤奋工作的品德，教导他们充分利用现有的条件。Her flaws were as large as her virtues.她的缺点和优点一样多。Doctors often extol the virtues of eating...