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borehole
kipkoech
njenga
kakuma
bungoma
gutter pipe
mugenzi
mwangura
kariobangi
bindura
latrine
ventilation pipe
libolo
waste water system
mwangi
construction work
kapsabet
concrete pipe
mwaruwari
nyambuya
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GIF 动图
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borehole
kipkoech
cementing
boreholes
concreting
kakuma
njenga
ventilation pipe
construction work
mugenzi
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fetching water
brickmaking
bafut
bandiagara
kigoma
water pump
cookstoves
brickmakers
cementing
water well
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roof plate
solar battery
base plate
water tray
solar batteries
roof tile
stone slab
digital tablet
waterproofing
photovoltaic system
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decontaminating
chemical disaster exercise
desulphurization
decontaminate
deaminating
chlorinating
decontaminated
flour production
depressurizing
wastewater treatment
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composting
kariobangi
fetching water
sugar cane press
waste water system
people of uganda
rwandans
bafut
kapsabet
composter
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borehole
fetching water
boreholes
water pump
kakuma
water well
musangana
kipkoech
galkayo
konso
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borehole
boreholes
waste water system
water well
woman at the well
concrete pipe
female worker
archaeological dig
excavation work
digging equipment
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bandiagara
agadez
lalibela
hamadou
mahamadou
mouhamadou
djenne
djougou
mandinka
yahaya
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brickmaking
bricklayer
brickmakers
a carpenter
bafut
fetching water
building work
building materials
bricklayers
stonemason
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concreting
cementing
shotcrete
ready-mix concrete
boreholes
borehole
compacting
cementitious
road construction
desulphurization
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latrines
boreholes
borehole
the water shed
waste water system
fetching water
kariobangi
water well
cattle dairy
coconut water concentrate plant
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tubewells
female worker
dharavi
waste water system
indian worker
kibera
peruvanam
shotcrete
cementitious
mathare
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waste water system
concreting
waterproofing
sewage pipe polluted water
bioreactors
wastewater treatment
water removal
drainage pipes
stormwater
under ground hydrant
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prefabricated buildings
facade insulation
thermal insulation
electrical installation
building work
a carpenter
structural engineer
heat pumps
roofing work
building construction
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flour production
washing drum
soap making
beneficiation
breadmaking
sheep shearing
fetching water
cooking pot
handwashing
brickmaking
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clay soil
excavation work
composting
borehole
boreholes
bioreactors
fetching water
waste water system
backfilling
bungoma
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soap making
flour production
cementing
beneficiation
electrical installation
yoghurt production
borehole
electroplating
wastewater treatment
libolo
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konso
borehole
fetching water
soap making
cementing
bentiu
boreholes
washing drum
kakuma
akobo
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borehole
boreholes
fetching water
waste water system
wastewater treatment
sugar cane press
water well
washing drum
water pump
coconut water concentrate plant
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washing drum
fetching water
waste water system
ciliwung
greywater
clothes washer
mathare
water sampling point
tubewells
washing