abstract
apparatus
arrow
background
boiler
celsius
closeup
cold temperature
degrees
design
device
domestic boiler
electric
electricity
electronic
element
energy
equipment
heat
heat supply
heater
heating system
household equipment
icon
indicator
industrial background
measurement
metal
minus
object
pipes
plus
power
red scale
round
scale
scoreboard
sensor
shape
storage boiler
switch
symbol
technology
the beginning of the scale
titanium
value
water heating
water temperature
white
定額
water temperature sensor on the white surface of the metal body of the boiler and koi space on the right, red scale for measuring degrees in Celsius with an arrow at low readingsの素材 [FY310163538578]
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