单门，未锁，便于操作。门折页的设计可使在不使用工具时，拆除门，便于手套或半袖套的维护。
A single, easy to operate handle unlocks the door. The door hinge allows the door removal without tools, facilitating maintenance using gloves or half suit.
作为车辆的重要装备，高速列车一般采用塞拉门来替代普通的折页门结构。 塞拉门在设计制造中面临许多难点，国内对此的研究和实验还很少。
Though there are many difficulties found in design and manufacture of sliding-plug door, analysis and experimental research about them are in rare number.
作为车辆的重要装备，高速列车一般采用塞拉门来替代普通的折页门结构。 塞拉门在设计制造中面临许多难点，国内对此的研究和实验还很少。
Though there are many difficulties found in design and manufacture of sliding-plug door, analysis and experimental research about them are in rare number.
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