载有切合实际的职能-平台真正解除，滑动门和门！
Loaded with realistic functions - platforms really lift, sliding doors and gate!
与滑轮相配套的轨道对于滑动门的使用也是至关重要的，滑动门常用的轨道一般有冷轧钢轨道和铝合金轨道两种。
The track matching the pulley is crucial for the use of sliding door. Generally, there are two types of sliding tracks: one is made of cold-rolled steel; the other one is aluminum alloy.
存在固定部分（2）和至少一个滑动门（7）、（8），固 定部分（2）界定了内部空间（6），滑动门（7）、（8）能在打开和关闭位 置之间水平滑动。
There is a fixed part (2) defining an internal space (6) and at least one sliding door (7), (8) that can slide horizontally between open and closed positions.
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