Array
(
    [0] => Array
        (
            [0] => keywords
            [1] => exp
            [2] => FIND_IN_SET('掩护式液压支架', keywords)
        )

    [1] => Array
        (
            [0] => keywords
            [1] => exp
            [2] => FIND_IN_SET('郑州煤矿机械集团股份有限公司', keywords)
        )

    [2] => Array
        (
            [0] => keywords
            [1] => exp
            [2] => FIND_IN_SET('煤安标志', keywords)
        )

)