asian
atom
background
biohazard
biology
blur
chemical
chemist
chemistry
danger
dangerous
ebola
electron
energy
equipment
experiment
hazard
icon
indoor
industry
ionizing
ionizing radiation hazard symbol
lab
laboratory
lighting
male
man
mask
material
molecule
nuclear
protection
radiation
red
research
researcher
safety
science
scientist
sign
symbol
technology
test
toxic
uniform
vaccine
virus
warning
waste
xray
定額
Male science researcher in protective uniform works in x-ray laboratory, ionizing radiation hazard symbol on foreground. Selective focus.の素材 [FY310141450060]
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