a inspection of a railway tunnel search for defects in construction
GLIX-111-645822582
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Leírás
A inspection of a railway tunnel search for defects in construction
Kulcsszavak
computer,
mine,
Carrying,
transport,
transportation,
industrial,
technology,
construction,
industry,
lamp,
development,
occupation,
professional,
test,
work,
darkness,
helmet,
safety,
lantern,
torch,
system,
quality,
journey,
train,
uniform,
worker,
engineer,
search,
problems,
railway,
underground,
master,
locomotive,
railroad,
digger,
flashlight,
monitoring,
checking,
subway,
tunnel,
defect,
task,
workman,
specialist,
inspection,
coveralls,
diagnostics,
miner,
Road Construction,
engineer railway,