在指出传统的MAC层协议无法提供能量高效的可靠传输后，提出了一种以效率为中心的可靠通信机制——分组确认机制。

After pointing out that traditional MAC protocol can not provide energy efficient reliable transfer, a new group-based acknowledgement mechanism, which was efficiency centric, was brought forward.

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本文介绍在日本国寺泉干燥中心测得的干湿谷混合干燥试验结果，分析混合干燥设施的能量消耗、干燥效率、物料品质等项技术指标。

The studies have been did in the Shi Quan, Rice Center. Japan. The technical index such as material quality, energy consumption and drying efficiency erf drying facilities, have been analyzed.

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