This paper introduces the application of the means of perturbation in hard spring system.

本文介绍了微扰法在硬弹簧系统中的应用。

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Pizza dough was prepared with two commercially available flours: a hard spring wheat blend (13.95% protein) and a hard winter wheat blend (11.2% protein).

比萨饼面团用的面粉是由硬质春小麦面粉(13.95%蛋白质)和硬质冬小麦面粉(11.2%蛋白质)配制而成。

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The Mole had been working very hard all the morning, spring-cleaning his little home.

鼹鼠辛辛苦苦地干了一上午活，给他的小屋子来了个春季大扫除。

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He would try to explain it this way when students asked for a top grade just for studying hard in chemistry class: What if a baseball player came to spring training and worked harder than all the others, but still could not play well.

VOA: special.2009.03.12

Phil's working so hard. You know, spring training.

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Braves closer Craig Kimbrel, who has been hit hard this spring, pitched a scoreless inning.

WSJ: Gee pitches 6 shutout innings, Mets beat Braves

Minor has been hit hard this spring and allowed homers to Andrew Brown, Jamie Hoffmann, and Collin Cowgill.

WSJ: Gee pitches 6 shutout innings, Mets beat Braves

His father, who seems to have been an intellectual but without much formal education, grew the hard red spring wheat of the northern prairies.

ECONOMIST: Mancur Olson | The