durana metal杜: birch-leaf pear a surname拉: cut; slash; slit钠: sodium黄铜: yellow metal; brass杜兰钠黄铜: durana metal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:杜拉钠黄铜,即可在微信中查询翻译