Special passengers like infants and those flying to airports without automatic check-in machines can still use paper tickets.
一些特殊乘客，如婴儿及目的地机场无“自助值机”设备的乘客仍可使用纸质机票。
There are automatic barriers which are operated by the tickets.
还有自动障碍检门票。
The reporter saw six passengers pass through the automatic checking system within a minute, while staff checked the tickets of three others.
记者在一分钟内看到六名乘客通过了自动检票系统，而工作人员检查了另外三人的车票。
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