Stone Gate pass: it is situated at ruptured stratum of Mt. Huaying, where is a natural-made pass by flood in thousands of years.

石门关——石门关是华蓥山脉地层断裂处经洪水长年冲刷而形成的天然豁口。

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What then of my dreams of leaning on a cottage gate and murmuring "morning" to the locals as they pass by.

我的梦想是靠在小屋的门上，对着路过的当地人喃喃地说声“早上好”。

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Passengers can swipe an ID card to pass through a gate before taking a high-speed train.

乘坐高铁前，乘客可以刷身份证通过闸门。

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So a camera watching a gate through which only a dozen people pass each day would appear to be a much busier gate, with a dozen people using it in a few seconds.

ECONOMIST: Monitor

Finally, the ID card is flashed at the gate no boarding pass needed and agents there hand the traveler a receipt with the seat number printed on it.

WSJ: Flying Through the Airport

When a traveller enters an airport with one of these smart cards, sensors read the passenger's card and automatically send a gate number and electronic boarding pass to the passenger's smartphone.

BBC: In brief: Ash cloud threatens UK flights