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随着时代的发展和社会全面建设的推进,工程机械作用日益凸显,机械操作手作用的发挥的好坏直接影响工程进度和经济效益。
With the development of the times and the promotion of comprehensive social construction, the role of construction machinery has become increasingly prominent. The role played by mechanical operators has a direct impact on the progress and economic benefits of construction.