The workers are winching out these big tree roots.
工人們正在把這些巨大的樹(shù)根從地里拔出來(lái).
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According to engineering characters and concrete situation the winching and rocker integral hoisting method is adopted.
針對(duì)該網(wǎng)架的工程特點(diǎn)及現(xiàn)場(chǎng)的具體情況,決定采用絞磨拔桿整體吊裝方法.
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