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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In 2007, the U.S. grew 12.8 million metric tons of hard red spring wheat, which is primarily used to make bread.

2007年，美国收获了一千两百八十万公吨的硬红春小麦，这些主要被用来制作了面包。

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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