青年中文perforation line的意思
perforation line中文翻譯：
穿孔線
相似詞語短語
perforation gauge───穿孔規
perforation gauges───穿孔規
demarcation line───[地理]分界線；劃界線
perforating gun───[油氣]射孔槍
perforating guns───射孔槍
perforation───n.穿孔；貫穿
perforations───n.[醫]穿孔；孔眼；器官或身體某部位的裂口（perforation的復數）
雙語使用場景
This company has seamless steel pipe perforation unit production line two, cold draw production line six, hot rolling production line with welded steel pipe production line two.───本公司擁有無縫鋼管穿孔機組生產線兩條，冷拔生產線六條，熱軋生產線一條和焊接鋼管生產線兩條。
with respect to continuous stationery, it is often four line spaces below the perforation line.───對于多頁文書來說，通常在穿孔頁縫以下空四行的位置。