本文对一大型船厂钢结构厂房的墙架系统设计进行了简单介绍。

The design of wall frame system in large- scale steel shipyard building is introduced.

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我们离开房子之前，看到墙外有一架飞机。

Before we left the house we saw a plane outside the wall.

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我们离开房子之前，看到墙外有一架飞机。

Before we left the house we saw a plane outside the wall.

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