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Concrete mixing and unloading mainly depend on the two spiral mixing leaves, so the design of the helical mixing blades is particularly important.

混凝土的搅拌和卸载主要依靠两个螺旋搅拌叶片，因此螺旋搅拌叶片的设计尤为重要。

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Loading and unloading of data can be done from the secondary server.

数据的加载和卸载可以从次服务器完成。

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"I saw all these ships waiting out there,I am guessing, waiting their turns to load and unload the cargo, so,I said,Why do the ships come into the harbor?" Why not have the harbor go out there and bring the goods in?'" Researchers describe the mobile harbor as a lean, light system for unloading container ships even if the coastal area is too shallow for them to dock.

VOA: standard.2010.01.04

He earned money washing dishes at a sorority house and unloading freight at the railroad station.

NPR: Edward R. Murrow: Broadcasting History

Wright dug in, slashing overhead--like much of the real-time newsroom--and unloading underperforming print publications.

FORBES: Magazine Article

"I saw some children working there loading and unloading donkeys, " said Khalilullah, the driver.

WSJ: Teenager Films Afghan Child Labor