Expansion joints of various kinds are fitted on gas mains.
种伸缩接头安装在煤管道上了。
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The Victorian brick buildings with their wooden frames could not withstand the force of the shaking, chimneys cracked, and water and gas mains were broken.
木结构的亚式砖房无法承受摇晃的,囱破裂,水和煤气总管破裂。
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