Set your dryer on low or medium heat, and keep the dryer about six to eight inches away from your hair.

把你的吹风机调到低档或中档热度，离头发大约六到八英寸远。

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Melt the butter over a medium-low heat. When it is melted and bubbly, put in the flour.

用中低火把黄油加热。待黄油熔化起泡后，放入面粉。

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Reduce the heat to medium-low, cover the pot, and simmer the meatballs for 2 hours, adding some water if necessary to keep the mixture from sticking to the bottom of the pot.

将肉丸添加到煮沸的白菜汤中，减弱火势至中低档，盖上锅盖，再慢煮的肉丸汤2小时，如果需要，可添加水，以保证汤料混合物不沾锅底。

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You've probably seen agar plates, if you smear a solution that's contaminated with bacteria on it, then that bacteria will grow on this agar rich medium and you'll get many, many copies of the bacteria that you've smeared at low density onto the plate.

你们大概见过琼脂培养基,如果将有细菌的溶液涂抹在培养基上,细菌就会在富含琼脂的培养基上生长,你会得到许多许多细菌,即使你只涂抹了低浓度溶液

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Reduce the heat to medium low and simmer gently for 2 to 3 minutes.

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Reduce the speed to medium-low and knead for 6 to 8 minutes, until smooth and elastic.

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Cover and cook over medium-low heat for 15 minutes, stirring from time to time, until the pear pieces are softened.

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