[问答题,简答题] 处理柴油机故障时“摸”是摸什么？

对于一个正常的移动台主叫流程，下面的信令流程先后次序正确的是（） ["OriginationMessage->CMServiceRequest->Allocation->Establish->AssignmentComplete->TchPreamble","OriginationMessage->CMServiceRequest->TchPreamble->Establish->AssignmentCompleteAllocation","OriginationMessage->CMServiceRequest->Establish->Allocation->TchPreamble->AssignmentComplete","OriginationMessage->CMServiceRequest->Establish->AssignmentComplete->Allocation->TchPreamble"] 上行沟通有何作用？ 柴油机燃油系统中有空气如何处理？ 什么是正式沟通？ 实测容重的方案应由（）配合提出。实测容重的结果需报省（市、区）煤炭厅（局、公司）批准后方才有效。 处理柴油机故障时“摸”是摸什么？