On the sign-in sheet of a literature class, he simply scribbled a question mark instead of his name.

在文学课的签名簿上，他只签了个潦草的问号代替自己的名字。

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Viscous pressure forming (VPF), a recently developed process, is an advanced approach in sheet metal forming.

粘性压力成形技术是金属板材成形领域里新近出现的一种先进的加工工艺。

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Springback is an inevitable and universal phenomenon in sheet metal forming, which may affect the tolerance and final shape of stampings.

回弹是板材成形过程中不可避免的一个普遍现象，直接影响到冲压件的尺寸精度和零件最终形状。

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Let's begin with a kind of warm-up sheet which we can anchor in these little drawings I've made.

让我们先来热一下身,看一下我在黑板上画的图。

耶鲁公开课 - 文学理论导论课程节选

Maybe there is no music, so it's just kind of dancing in the middle of a cookie sheet all by himself.

可能会没有音乐，也许只是在众多饼干人中间,单纯地跳舞。

哈佛公开课 - 计算机科学课程节选

Also we will have students doing workshops and problem-solving where the students will solve problems as a group, a group of three and turn in a common work sheet.

我们还有学生做研讨会,以及问题解决,从而学生可以以三人小组为单位,解决问题,最后上交平常的作业。

麻省理工公开课 - 媒体、教育、市场课程节选

The phonograph and radio threatened to wreck the idea of music copyright then embodied in sheet music.

ECONOMIST: Digital books

Founded in 1918, Ashland makes nickel and cobalt-based alloys in sheet, coil and plate forms.

FORBES: Valvoline Driving Ashland To New Highs

Democratic caucus-goers express their preference through a show of hands, a sign-in sheet or by dividing themselves into groups according to candidate.

BBC: Caucus