The easy thread pulling during the manual material feed enables convenient and trouble-free handling when sewing the workpiece.

当缝制缝片时，在手动输送面料过程中缝线可被容易地拉出，使达到简便无误的缝制操作。

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The experimental results reveal that physical workload index can comprehensively reflect the risk of injuries and disorders imposed on workers by manual material handling in workplace.

实验研究结果验证了身心负荷指数可以综合反映作业者面临的身心损伤风险。

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As gallery material, photographs are now essentially no different from paintings concocted entirely from an artist's imagination, except that they lack painting's manual touch and surface variation.

作为画廊的展品，摄影已经与那些完全源自艺术家想象力的绘画几乎没有分别，除了摄影比他们需要更少的技巧。

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In a material sense, even manual laborers are phenomenally wealthy by historical standards.

FORBES: Paying Tribute To The Vital Entrepreneurs Who Get Rich

For Crawford, the failure to appreciate skilled manual labor is a symptom of something even worse: a narcissistic refusal to grapple with the material world.

NEWYORKER: Out of the Office