| 单词 | pitch chain |
| 释义 | Definition of pitch chain in English:pitch chainnoun Mechanics
OriginMid 19th century; earliest use found in Henry Stephens (1795–1874), writer on agriculture. Definition of pitch chain in US English:pitch chainnoun Mechanics
OriginMid 19th century; earliest use found in Henry Stephens (1795–1874), writer on agriculture. |
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