- service access point identifier
- 服务: give service to; be in the s ...
- 访问: visit; call on; interview; a ...
- 点: drop
- 传送服务访问点标识符: tsap-id transfer service access point identifier; tsap-id transfer service access point identifier
- 服务访问点: saservice access point; service acce point （sap）; service access point
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