Is operation of the crane under the blue sky
Schlüsselwörter
crane,
machinery,
building,
architecture,
technology,
design,
engineering,
construction,
enterprise,
occupation,
industry,
high,
activity,
scheduling,
lifting,
work,
tower,
iron,
metal,
security,
project,
isolation,
upright,
sky,
white cloud,
clear,
environment,
feature,
beautiful,
blue,
green,
china
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