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rolling ring 强调
镀锌	прокатная шайба; валковая шайба (в клетях-кассетах)
英语 词库
rolling ring
珠宝	A ring that is comprised of usually three or more bands that roll over one another as the ring slides on and off. Another type of rolling rind features a solid band with another band set inside that moves back and forth. The latter is popular with Celtic styles.

rolling ring : 7 短语, 5 学科

冶金	1
技术	3
材料科学	1
自动化设备	1
航海	1