機器
alarm
antique
boiler room
building
business
clock
devices
dial
energy
equipment
factory
gas
gauge
hand
hour
houses
hydraulic
indication
industrial
industry
instrument
isolated
job
manometer
measure
measurement
metal
meter
minute
motor
pipes
power
pressure
pump
retro
school
sensor
steel
system
teaching
technology
technology icons
time
urban
valve
watch
water
white
work
定額
Sensors and devices indicating the parameters of hot water in the heating system of a large house. Interlacing of pipes. Technical training stand. Hydraulic components of the water distribution system.の素材 [FY310130714932]
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