tracklaying 中文意思是什麼
tracklaying
解釋
鋪軌的-
Test methods for forestry wheeled and tracklaying tractors
林業輪式和履帶拖拉機試驗方法 -
General specifications for forestry wheeled and tracklaying tractors
林業輪式和履帶拖拉機通用技術條件
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