manless
/ˈmænləs/ 3Without men or people; uninhabited. Unmanly; base; cowardly; dastardly; unbecoming a man.
adjective [原级]无人的;没有男子的;卑鄙的;残忍的
New mining technology in manless face under long span national railway bridges
大跨度桥梁下无人工作面开采新技术
单词造句:
New mining technology in manless face under long span national railway bridges
大跨度桥梁下无人工作面开采新技术