determine
alkaline
analyze
background
blue
care
chemical
chemistry
clean
control
cut out
device
diagram
digital
display
distilled
drink
drinking
electronic
equipment
glass
hard
health
healthy
instrument
lab
laboratory
liquid
measure
measurement
measuring
medical
meter
monitoring
natural
neutral
ph
portable
purification
quality
researcher
science
sterile
substances
tds meter
technology
test
tester
tool
water
定額
Water quality meter tester submerged in drinking glass, on blue background. Measuring harmful impurities, distilled water, purifying water for healthy eating.の素材 [FY310216084233]
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