The instance model for airplane assembly order is constructed;

构建飞机的装配指令实例模型。

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We must always maintain order in the assembly hall.

我们一定要随时控扼这个会场的秩序。

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We must always maintain order in the assembly hall.

随时控扼这个会场的秩序。

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We must always maintain order in the assembly hall.

随时控扼这个会场的秩序。

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