hardjo哈尔乔型hardadj.硬的；困难的；棘手的；坚强的；残酷的；用力的；液态的；严寒的；确凿的adv.努力地；强烈地；严重地；坚定地hard rock and hard coal两硬hard-biodegradability难降解废水hard facing arc welding表面加硬电弧焊Hard disc magnetic head硬盘磁头hardheaded intelligence冷静的智慧hard real-time system硬实时系统Hard-won achievements来之不易Hard disk drive bracket硬盘驱动架hard-finished plaster硬面灰膏hard-switch modulator刚性开关调制器