protection helmet, steel helmet
protection helmet, steel helmet
[专利英汉词典]
protection helmet, steel helmet【机械工程;照明;加热;武器;爆破】
防护头盔,钢盔
是什么意思,protection helmet, steel helmet的解释,protection helmet, steel helmet的翻译
protection helmet, steel helmet
[专利英汉词典]
protection helmet, steel helmet是什么意思,protection helmet, steel helmet的解释,protection helmet, steel helmet的翻译