Another installment of technical-ish Chinese vocab!

黑客 = hacker
创客 = maker
项目 = project
爱好者 = enthusiast
创新 = innovation
思维 = way of thinking
3D打印机 = 3D printer
四旋翼飞行器 = quadcopter
重复造轮子 = reinventing the wheel
攻击 = to attack / an attack (as used with DOS攻击)
纳税人 = taxpayer
所得税 = income tax
培训 = to train / training
推荐 = to recommend / recommendation
视频 = video
汇率 = exchange rate
投影仪 = projector
域名 = domain name
翻墙啊 = to climb over a wall / figuratively, to breach the Great Firewall of China
设置 = to install / set up (software)