英文關鍵字
accuracy
automate
automatic
automation
background
belt
bottle
closeup
conveyor
device
engine
engineer
engineering
equipment
factory
flask
fluid
gallon
goods
industrial
industry
iron
line
liquid
machine
machinery
manufacture
manufacturing
mechanical
metal
metallic
modern
motor
nobody
plastic
product
production
puddle
row
safety
steel
tech
technology
tool
transport
transportation
vase
water
white
work