短語詞組短語Application Compatibility Layer 兼容層HLC High Layer Compatibility 高層兼容性high layer compatibility 高層兼容性;高層的兼容性LLC Low Layer Compatibility 低層兼容性low layer compatibility 低層兼容性;低層兼容high layer compatibility hlc 高層兼容性HLA High Layer Compatibility 高層兼容性low layer compatibility information element 低層兼容性信息元Narrow -Band Low Layer Compatibility 窄帶低層兼容性 返回 compatibility layer