用户数据约束（user data constraint）满足了受限的请求应该经由受防护的传输层链接进行传输的需求。
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?用户数据约束
... 使用者数据区 user data area 用户数据约束user data constraint 使用者数据记录 user data record ...
双语例句
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A userdataconstraint establishes a requirement that the constrained requests be received over a protected transport layer connection.
用户数据约束(user data constraint)满足了受限的请求应该经由受防护的传输层链接进行传输的需求。
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Also an adaptive TFC allocation algorithm is given to minimize total transmitting power with the constraint of the minimal data rate requirement of each accessed user.