coal-dust stained yarn的意思|示意
美 / /
英 / /
煤尘染纱
coal-dust stained yarn的网络常见释义
煤灰纱 ... coal-dust brick 煤灰砖 coal-dust stained yarn 煤灰纱 Coal mine dust concentration transducer 煤矿用粉尘浓度传感器 ...