社会保险和福利支持不足的问题
Insufficient social insurance and welfare support
不确定性支持向量分类
uncertainty support vector classification(USVC
不同PLMN间GPRS支持节点间的接口
Interface between GPRS Support Nodes (GSNs) in different
不予及撤除维生医疗
withholding and withdrawal of life support
不予确认
NAK Negative AcKnowledgement
NACK Negative ACKnowledgement