The building's gabled roof, pipework and internal structure were exposed.
建筑的山墙屋顶、管道和内部结构被暴露在外。
Also check that the adjoining pipework is clean and free from debris and burrs.
也检查所连接的管道是否清洁，没有碎片和毛刺。
After the hydraulic connection to the circuit, the pipework must be bled carefully.
当设备连接入工作回路之后，请小心完成对各管道的操作。
After the hydraulic connection to the circuit, the pipework must be bled carefully.
当设备连接入工作回路之后，请小心完成对各管道的操作。
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