perforation
美音:[´pə:fə´reıʃən
]
英音:[´pə:fə´reıʃən
]
n.穿孔
难易程度:
perforation为短语/超纲词汇
近义词, 同义词
perforation
/,pɜ:fə'reɪʃn; ,pɝfə`reʃən/
n
1 [U] perforating or being perforated （在某物上）穿孔; （在纸等上）打齿孔.
2 [C] series of small holes made in paper, etc （纸等上的）齿孔
*tear the sheet along the perforations 顺齿孔撕下该页.
n
1 [U] perforating or being perforated （在某物上）穿孔; （在纸等上）打齿孔.
2 [C] series of small holes made in paper, etc （纸等上的）齿孔
*tear the sheet along the perforations 顺齿孔撕下该页.
perforation
n formal
[C usually plural]
a small hole in something, especially one of a line of holes made in a piece of paper so that it can be torn easily
the perforations in a sheet of stamps
[U]
when something makes a hole or holes
[C usually plural]
a small hole in something, especially one of a line of holes made in a piece of paper so that it can be torn easily
the perforations in a sheet of stamps
[U]
when something makes a hole or holes
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