1
the milling of [material]
此处 milling 指机械切削加工中的铣削过程。
The milling of steel requires special tools.
钢的铣削需要特殊工具。
铣削；碾磨
先理解核心含义，再看它在真实句子里的用法。
铣削；碾磨
The process of grinding, cutting, or shredding something using a mill.
The milling of steel requires special tools.
钢的铣削需要特殊工具。
使用各种类型磨机进行的各种研磨、切割或切碎过程。
Any of various grinding, cutting, or shredding processes using any of various types of mill.
硬币的锯齿状边缘
corrugated edge of a coin
此类过程产生的表面或其他物理结果。
The surface or other physical result produced by such a process.
兽群或人群的环形或无规则运动。
A circular or random motion of a herd or a crowd.
The coin's milling was worn smooth after years of circulation.
这枚硬币的锯齿边缘经过多年流通后变得光滑。
Collectors often check the milling to verify a coin's authenticity.
收藏家通常检查硬币的锯齿边缘以验证其真伪。
The quarter's milling features a series of small ridges.
这枚25美分硬币的锯齿边缘有一系列小棱纹。
此处 milling 指机械切削加工中的铣削过程。
The milling of steel requires special tools.
钢的铣削需要特殊工具。
milling 还可指硬币边缘的齿纹，用于防伪。
The milling on this old coin is worn smooth.
这枚旧硬币的锯齿边已经磨平了。
此义项指人群无目的乱转或涌动。
The milling of the crowd outside the stadium slowed traffic.
体育场外人群的涌动使交通受阻。
Not this
The milling edge of the coin is rough.
Use this
The milled edge of the coin is rough.
milling 是名词/动名词，指‘铣削过程’或‘硬币的锯齿边缘本身’，不能直接修饰 edge；修饰硬币上被加工出锯齿纹的边缘，应该用过去分词 milled 作形容词，表示‘被压出花纹的’。
Not this
The coin has many millings on its edge.
Use this
The coin has many ridges on its edge.
milling（或 millings）指硬币边缘整体的锯齿状花纹或压花工艺，不是一条条独立的齿纹；要表达‘许多条凸纹’，应使用 ridge/ridges，而不能把 milling 当作单个齿纹的可数名词来列举。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
铣床
They used a milling machine to cut the gear teeth.
他们用铣床切削齿轮的齿。
铣刀
A milling cutter spins at high speed to shape metal.
铣刀高速旋转来加工金属。
面粉碾磨
Flour milling turns wheat into fine powder.
面粉碾磨将小麦变成细粉。
硬币边齿
The coin milling makes it harder to counterfeit.
硬币边齿使其更难伪造。
人群的涌动
The milling of the crowd made escape difficult.
人群的涌动使逃跑变得困难。
（人群）闲逛；乱转
Fans were milling around outside the stadium.
球迷们在体育场外闲逛。
Use milling naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
想成磨坊(mill)的滚轮碾压硬币，压出锯齿边；人群乱转也像被碾着转。
语域：formal 常见场景：coin minting、numismatics、coin collecting 严格来说，milling 指硬币边缘的锯齿纹或滚花，属于较正式的术语，多用于铸币、钱币收藏或防伪检测等专业场景。日常口语中不常用，一般说 reeded edge 或 ridges。
这些词都与 milling 押韵：重读元音 /ɪ/ 和后面的 /lɪŋ/ 相同。注意：mill /mɪl/ 与 mile /maɪl/ 拼写相似，但读音不同。
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.