英文關鍵字
1080p
basic
bunchi
chemical
chemistry
closeup
condition
construction
control
development
distillation
dryer
equipment
filter
footage
lab
laboratory
material
mixing
monitoring
multipurpose
operation
pilot
plants
probes
process
processing
reaction
reactor
rectification
scrubber
simulation
solid
system
temperature
testing
unit
vacuum
vessel
video