并进行了工艺过程规划。再次，进行了滚筒磨料抛光实验。
Moreover I carried out the planning process . Thirdly , we did lots of drum abrasive polishing experiments .
但用70~高碳钢制作的钢丝圈目前大多仍采用六角滚筒回转式木屑抛光。
But travellers made of 70 ~ (?) steel are still polished mostly by rotary hexagonal drums with wood scrapers .
滚筒抛光