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It adopted combined random and piggy-backed reservation, combined demand assignment and free assignment.
协议采用随机预约和捎带预约结合，按需分配和自由分配结合来实现的。
youdao
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It adopted combined random and piggy-backed reservation, combined demand assignment and free assignment.
协议采用随机预约和捎带预约结合，按需分配和自由分配结合来实现的。
youdao