有固定尺寸的盘子或有用的梁并且选择包括基于规定的交付圆的计算，旅程长度，开着门的次数，时间长短等。
There are fixed sizes of plates or beams available and selection involves calculations based on the prescribed delivery rounds, the journey length, number of door openings, time period, etc.
有固定尺寸的盘子或有用的梁并且选择包括基于规定的交付圆的计算，旅程长度，开着门的次数，时间长短等。
There are fixed sizes of plates or beams available and selection involves calculations based on the prescribed delivery rounds, the journey length, number of door openings, time period, etc.
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