One part is made of a sheet of metal painted black.
一部分是一层被涂黑的金属层。
He shook a sheet of metal to simulatethe noise of thunder.
他摇动一块金属薄片来模拟雷声。
He shook a sheet of metal to simulate the noise of thunder.
他摇动一块金属薄片来模拟雷声。
The machine punches a row of holes in the metal sheet.
机器在金属薄板上冲出一排孔。
Graphics software is an important part of a finite element system for sheet metal forming.
在板料成形有限元模拟软件系统中，图形平台是重要的组成部分。
They cut holes on the sheet of metal with a punch press.
他们用冲床在金属板上打孔。
The metal parts are made out of a flat sheet of metal in every case.
每个金属零件都是从一个大金属片上裁取制造的。
A thin sheet of metal, especially of tin.
铁片薄金属块，尤指锡。
The cell door was sheet metal welded onto a frame of iron.
牢房的门是把金属板焊在铁框架上制成的。
A method for manufacturing a circular metal tank, from an elongated sheet of metal.
一种由细长金属板制造圆形金属桶的方法。
The mould jointing of metal sheet is a new method and die is key technology.
模压连接是一种新型金属连接方法，其关键技术是模具。
The mould jointing of metal sheet is a new method and die is key technology.
模压连接是一种新型金属连接方法，其关键技术是模具。
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