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construction of the wall
year of construction 1937 to 1952
mine shaft
bridge - building structure
colliery
mining facility
mining site
eiffel tower under construction
iron construction
construction set
aerial lift bridge
coal mining
pennybacker
building construction
minidoka
umwa
construction work
pyramiden
hafjell
transmission mast
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GIF 动图
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year of construction 1954 – 1962
year of construction 1937 to 1952
construction of the wall
mine shaft
mining site
bridge - building structure
colliery
eiffel tower under construction
mining facility
construction set
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tadoussac
fisgard
nahanni
cevaer
lutsen
kangerlussuaq
nordvik
skjeldal
harstad
upernavik
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coalminers
mineworkers
coalmining
construction of the wall
ironworkers
coal mining
miners
navvies
bucket wheel excavators
oilworkers
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road construction
rack railway
coaling
buffer stop
petawawa
the selketal railway
logging truck
kibbutzniks
elevated railway
sugar cane press
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ship yard
duwamish
fisgard
panorama of helsinki
boats in the port
harbor cranes
cargo port
steamships
dockyards
marshalling yard
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falsework
steel scaffolding
roof construction
precipitator
wheelabrator
building construction
millwright
eiffel tower under construction
year of construction 1954 – 1962
antique construction
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transmission mast
year of construction 1954 – 1962
heliograph
sutro
steel scaffolding
historic windmill
oil rig
eiffel tower under construction
steel tower
methil
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year of construction 1954 – 1962
drydock
falsework
year of construction 1937 to 1952
millwright
construction set
steel construction
construction of the wall
millwrights
concrete plant
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year of construction 1954 – 1962
building construction
year of construction 1937 to 1952
construction work
iron construction
construction
duwamish
roof construction
construction site
construction of the wall
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crane boom
water crane
load crane
the large crane
threshing
rope excavator
loading crane
mega crane
truck mounted crane
truck crane
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year of construction 1954 – 1962
concrete plant
vostochny
year of construction 1937 to 1952
grain elevator
construction of the wall
grain storage
concrete construction
counterweights
grain plant
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batterie de longues
counterweights
penstocks
mantlet
radar equipment
year of construction 1954 – 1962
mine shaft
telescopes
year of construction 1937 to 1952
dust plant
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penstocks
two-stage lock
spillway
canalisation
danube lock
sluice gate
floodwall
feedwater
impoundment
hydroelectric
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ship yard
boat yard
drydock
duwamish
whelton
drydocked
workboats
calumet
construction set
shipbuilding
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loading crane
harbor crane
crane boom
loading cranes
load crane
the large crane
year of construction 1954 – 1962
shipping crane
harbor cranes
container crane
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mine shaft
mining site
bandelier
gold mining
coal mining
coalmining
penstocks
coalfields
goldfield
coalwood
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water crane
aerial lift bridge
bucket wheel excavators
bucket wheel excavator
dragline
bridge - building structure
kinderdijk
harbor crane
dredge
minelaying
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bridge - building structure
waterwheels
bucket wheel excavators
water wheel
train crash
bucket wheel excavator
the wreck of the car
old bridge
bridgework
construction work
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rack railway
the selketal railway
narrow-gauge railway
narrow gauge railway
narrow gauge
cable railway
road construction
private railway
china clay
elevated railway
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year of construction 1954 – 1962
excavation work
construction of the wall
year of construction 1937 to 1952
draglines
open pit mining
coal mining
bucket wheel excavators
asarco
mining site