The key issue of the electronic tax is to establish a secure and efficient protocol model.
电子税务的核心是建立一个安全有效的电子税务协议模型。
Objective: to study the suitable vitrification solution and to find a efficient protocol to preserve newborn rat ovaries.
目的：探索适宜新生鼠卵巢保存的玻璃化液和冷冻方案。
The logical key hierarchy (LKH) scheme is the most efficient protocol for key management in the field of multicast at present.
逻辑密钥层次（LKH）方案是目前多播领域中最有效的密钥管理协议。
The logical key hierarchy (LKH) scheme is the most efficient protocol for key management in the field of multicast at present.
逻辑密钥层次（LKH）方案是目前多播领域中最有效的密钥管理协议。
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