Please uncord the box.

请解开那个盒子的绳子。

While conducting hydraulic fracturing, the flow rate is required to be controlled to enable the hall-off to block off and uncord the eyelet based on the stimulation process.

封堵球分层，为了使堵球按泵注程序对射孔孔眼进行封堵和解封，需要对的泵注排量提出要求。