earth rock excavation
[环境英汉词典]
earth rock excavationn.土石方开挖
是什么意思,earth rock excavation的解释,earth rock excavation的翻译
[水利英汉词典] earth rock excavation
earth rock excavation
[环境英汉词典]
earth rock excavation是什么意思,earth rock excavation的解释,earth rock excavation的翻译
[水利英汉词典] earth rock excavation