機器
ac
annealing
arc
circulation
coil
conductive
control
device
education
electric
electricity
equipment
forming
frequency
heat
heater
hot
induction
industrial
industry
instrument
insulation
kiln
line
machinery
manufacture
manufacturing
metal
metallurgy
method
oven
oxidation
pipe
pipeline
preheat
process
production
resistance
stirring
technology
temperature
thermal
thermo
thermoelectric
tool
tube
volt
voltage
work
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