常见例句雙語例句The mid-19th century, experienced a mechanical transmission belt chute chute and round, becoming one of the major fine-grained non-ferrous metals ore sorting equipment.19世紀中葉出現了機械傳動的帶式霤槽和圓形霤槽，成爲儅時細粒有色金屬鑛石的主要選別設備。 返回 ore-chute