To study the Maximum acceptable weight of lift(MAWL)in females and to provide a basis for drafting occupational health standard of manual lifting tasks.

研究女性手工搬举的最大可接受重量，为手工搬举作业劳动负荷标准的制定提供参考依据。

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The patients in study group were also given manual occupational therapy, including sewing, buttoning and paper cutting, etc.

研究组患者同时增加手工作业训练，包括缝纫、钉纽扣、剪裁等。

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Levels of owner-occupation rose dramatically between 1981 and 1991 from 30% to 63%, and non-manual occupational groups now form nearly 60% compared to less than 50% in 1981.

BBC: NEWS | VOTE 2003