尽管在过去的一年中,MAP 产品的签约成员在数量在增长,但在今后儿年内,被认为占1987年货运量4.9%的连续过程工业却在减缓接受这些标准做为通讯网络。一个主要原因是,连续过程工业的设计 Although the number of signing members of MAP products has been increasing in the past year, in the coming year, the continuous process industry that was deemed to have accounted for 4.9% of the freight volume in 1987 has slowed acceptance of these standards as a communication network. One of the main reasons is the design of the continuous process industry.