基群访问速率 ( primary access rate ) 北美：23B+D（64K），可提供T1速率；
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Primary Rate Access PRA 基群速率接入
ISDN Primary Rate Access ISDN一次群速率接入
primary rate access 初级速率存取
primary access rate
主访问速率
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Thus, while Romania had achieved a near-universal youth and adult literacy rate (98%) and access to primary school for children aged 15 and below (93%) as of 2006, ethnic, gender and regional literacy disparities remain evidently sharp.
UNESCO: Parent Empowerment for Family Literacy Project (PEFaL)
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