青い手袋をした作業員が壁に取り付けられたモニター機器を精密に調整するメンテナンス作業
Schlüsselwörter
working man,
engineer,
expert,
working,
maintenance,
fix,
installment,
electricity,
equipment,
checking,
instrument,
monitor,
security,
intercom,
tool,
driver,
hand,
precise,
craftsman,
home,
wall,
safe,
cleanliness,
site,
concentration,
technology,
professional,
daytime,
adult,
man
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