knoop microhardness test努: put forth; exert氏: family name; surname微: minute; tiny; light; slight硬度: hardness; solidity; scirrhos ...试验: experiment; test; trial下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:努氏微硬度试验,即可在微信中查询翻译