Steel structure of outdoor environment, generally do not consider fire protection.
室外环境的钢结构，一般不考虑防火保护。
The first structure is meeting space which made by plywood structure located at outdoor .
第一种结构位于室外为满足空间采用胶合板结构。
The first structure is meeting space which made by plywood structure located at outdoor .
第一种结构位于室外为满足空间采用胶合板结构。
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