- originating terminal
- 原: primary; original; former
- 发端: make a start; initiative; in ...
- 发端: make a start; initiative; inception◇发端话务 outgoing traffic; 发端通信业务 outgoing traffic; 发端型 ancestrula
- 原发: idiopathic pulmonary arterial hypertension; primary sterility
- 发端，起源: origination
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