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EDCFBNC²³⁶²¹³⁺¹ 基本例句 增强分布式协调功能¹⁰⁰ In 802.11e, enhanced Distributed coordinate function EDCF allows wireless station to access the channel by contention. 这个协议所提出的基于竞争接入信道的机制称为增强型分布式协调方式 EDCF。 cnki In the paper a group ACK mechanism based on EDCF- CFB is put forward, and its efficiency is analyzed theoretically. 本文在 EDCF- CFB的基础上提出了一种群 ACK确认机制并从理论上进行了分析。 cnki The paper describes that inorganic non- metallic film on surface of aluminum and its alloys were formed by electrochemical deposition of ceramic film EDCF technique. 介绍了铝及其合金表面采用电化学陶瓷成膜技术制备无机非金属膜的工艺。 chemyq This experiment was designed to investigate the secretion and action of acute hypoxia- in-ducted endothelium- derived contracting factor EDCF in rat pulmonary artery. 本实验初步证实,急性缺氧可使大鼠肺动脉产生内皮衍生收缩因子,并对其性质作了初步探讨。 cnki |