This machine could make working period shorter, decrease labor force and increase the quality of product.

实践证明、该机可缩短工期、降低劳动强度、提高产品质量。

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The toughness may be well improved by postheat treatment which is large in energy consumption and long in working period.

焊后热处理可以较好地改善焊接接头的韧性，但存在耗能大、工时长等问题。

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Results The educational quality of postgraduate was affected by previous graduate college, working period before admission and admission age.

结果硕士研究生培养质量受毕业学校、入学前工作时间、年龄等因素影响。

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The results suggested that people do act differently if they think they are working with a group for a short period of time instead of a long period.

VOA: special.2009.03.03

"Once you submit your papers and passport, along with the visa fee - which is by the way non-refundable and ridiculously priced - there's normally a 15-working day period after which you are called back to pick up your passport and your visa which you may or may not get, " he said.

BBC: UK visa delays Pakistan rock star

Unlike Mr Zubkov, his career shows obvious signs of a period working for the security services.

ECONOMIST: Russia's government

Maybe one of you will have to (or want to) give up working for some period of time, say when you have an infant, or when a parent needs caretaking.

FORBES: Help! I'm the Breadwinner -- and He's Jealous