仿真空时分组编码的误码率曲线，通过空时分组的性能曲线，得到其分集优势-Simulation of space-time block-coded BER curves, through the space-time block of the performance curve, by its sub-set of advantages
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.003142s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.088425s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002603s ]
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SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002183s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002501s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 7813 [ RunTime:0.001174s ]
