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потокоотклоняющий шар

contraintes
champs. diverter ball (A diverter ball is a ball that is dropped or pumped through wellbore tubulars in a process known as diversion, and used during acidizing and fracturing operations. Nik-On/Off); frac ball (A diverter ball is a ball that is dropped or pumped through wellbore tubulars in a process known as diversion, and used during acidizing and fracturing operations. Nik-On/Off)