Recently, the Bell Laboratories layered space-time ( BLAST ) architecture employing multiple transmit and multiple receive ( MTMR ) antennas has been extensively investigated to realize high data rates and increased link level reliability in wireless communications. 使用合并正态对数的近似方法推导出链路可靠性与非理想功率控制的关系。近来,贝尔实验室分层空时码(BLAST)结构因为可以实现高的数据率和链路可靠性而被广泛研究。
The blast furnace has been the most important, economical and effective method of making iron, has been one of the most effective chemical reactions and heat exchangers, has been an important link of iron & steel production. 高炉一直是生产铁的最主要、最经济和最有效的方法,是一种最有效的化学反应器和热交换器,是钢铁生产中的重要环节。