英语词汇“yarn black board”的翻译、意思、用法、释义-英汉汉英双解词典

单词	yarn black board
释义	yarn black board 纱线黑板
随便看	underground waterproof underground waterproof concrete underground water proof concrete structure underground waterproof construction underground waterproofing underground waterproofing engineering underground waterproofing project underground water-proof project underground water-proof wall undergroundwater quality Underground Water Quality underground water quality evolution rule underground water recharge underground water recources underground water resource underground water resources underground water runoff zone underground water-sealed cavern underground water sealed caverns underground water-sealed oil storage cave underground watershed underground water source underground water source heat pump underground water-source heat pump underground water supply