Pre-splitting blasting experiments were carried out to obtain normal pre-splitting blasting parameters such as hole diameter, hole space, gun- powder chargeline density, and uncoupling factor.
You can talk the business over Mr. Wang who is in charge of this line.
具体业务您可以和主管这项业务的王先生洽谈。
3
A failure to maintain two ECCS trains operable due to gas accumulation in the charge and pump suction line. Self-identified, if you identify it by yourself you get credit.