機器
appliance
black
cable
calgonit
connect
continuity
diy
domestic
dry
earth
electric
electrical
fan
heat
heater
home
house
housework
indoors
inside
insulated
insulator
iron
life
live
metal
motion
motor
ohms
parts
pat testing
power
repairs
resistance
scrap
spare
stainless
steel
switch
technology
testing
unhygienic
vehicle
volt
washer
washing
washing machine
water