portland cement
[农牧林英汉词典]
portland cementn.波特兰水泥
是什么意思,portland cement的解释,portland cement的翻译
[公路科技英汉词典] portland cement
[冶金英汉词典] portland cement
[化学英汉词典] portland cement
[建筑英汉词典] portland cement
[机械英汉词典] portland cement
[消防英汉词典] portland cement
[环境英汉词典] portland cement
[石油英汉词典] portland cement
[矿业英汉词典] portland cement
[能源英汉词典] portland cement
[船舶英汉词典] portland cement