zài / zhè fèn / jiù / jì shù / zī liào / zhōng / jīn shǔ piàn / de / hòu dù / yǐ / sī mǐ / wéi / dān wèi / biāo zhù在这份旧技术资料中,金属片的厚度以丝米为单位标注。In this old technical document, the thickness of the metal sheet is given in simi.