The quality control of double-deck large-tonnage trussed beam installation is also one of the major difficulties of the project.
双层大吨位桁车梁的安装质量控制也是本工程的重难点之一。
The quality control of double-deck large-tonnage trussed beam installation is also one of the major difficulties of the project.
双层大吨位桁车梁的安装质量控制也是本工程的重难点之一。
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