英文關鍵字
abstract
build
builder
construction
design
designer
designing
device
devices
diy
education
electonrics
electrical
electronic
electronics
engineering
engraving
equipment
gear
hardware
hobby
industry
innovation
invention
laboratory
laser
learn
machine
machinery
making
manufacturing
model
modern
part
printer
production
prototype
school
science
sensor
tech
technology
tool
work