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大師展示正在脫落的灰漿，硝石
一名來自保險公司的男子測量墻上的損壞情況并將其記錄在手機上。墻上有硝石。
密封膠帶、防水膠帶在第一層防水中的正確放置
灰漿層的分解，墻上硝石的成因
一名來自保險公司的男子拍攝受損墻壁的照片。墻壁因硝石而出現的不規則情況。
建筑工人指向漏水處，手持破碎的屋頂瓦片
鋪設街道和建造雨水排水渠道
painter looking big stain on the ceiling
工人組裝污水排放系統
the master holds a drawing with an explanation of how the saltpeter on foundation is developing
correct welding with a hot air welder
final application of the first waterproofing layer
工匠展示焊接后的缺陷，過熱
the worker shows the space between the wall and the floor, additional waterproofing is needed
PVC roofing foil, membrane, a separating layer, a support layer
手指上的濕氣痕跡，來自窗玻璃，通風和隔熱不良
cleaning the PVC membrane before welding with hot air
applying the waterproofing layer over sealing tape, waterproofing tape
墻上硝石形成的手繪圖解
工人展示防水系統中防水條的彈性部分
the reinforcing mesh, decorative stone paving in landscape architecture
清除墻上的灰漿和硝石
Wall drilling, grouting
properly attached PVC membrane, correct spacing
正確的手工焊機焊接
舊 PVC 膜屋頂維修準備工作
工人測量管道高度
peeling of paint on wall, caused by saltpeter
construction worker inspects old metal roof
兩塊 PVC 膜的不良焊接接頭，舊屋頂
Irregularities on the wall caused by saltpeter, an explanation of how the saltpeter on the wall is developing
measuring the length of the watertight band, sealing tape, the procedure for waterproofing works
saltpeter on foundation, heavy damage
Saltpeter cleaning with steel brush
Apply a coat, protective coating against saltpeter
finding a bad spot
child with sty on eye, treatment with creams
car mechanic compares two valves and shows distorted valve
mechanic shows torn rubber gasket on the map sensor
mechanic shows color cables
paving roads, walkways and streets, preparatory works for concreting placing the reinforcing mesh
preparatory works in construction industry, road paved with setts, the reinforcing mesh
preparatory works in construction industry, street paved with setts, the reinforcing mesh and stormwater drainage channel
preparatory works for concreting, placing the reinforcing mesh on construction site
worker shows how a setts are worked to regular shape, distinct from a cobblestone
visible gaps, street paved with granite setts, construction site
worker holds rectangular quarried stone used in paving streets, a sett
visible gaps, decorative stone paving in landscape architecture, under construction
streets layered with block or Belgian block, decorative stone paving, construction site
street paved with setts, visible gaps, under construction
street paved with setts, visible gaps, steel reinforcing, reinforcing mesh fabric.
stormwater drainage channel with paved streets on both sides, different paving
stormwater channel, paving streets, roads and walkways with different paving
rectangular quarried stone used in paving streets, visible gaps, stormwater drainage channel
steel reinforcing, reinforcing mesh fabric, paving the streets
preparatory works for concreting, street paved with setts, construction site
paving streets, roads and walkways with sett also known as a block or Belgian block
paved streets on both sides, different paving and stormwater drainage channel
decorative stone paving in landscape architecture, setts made of granite
decorative stone paving in landscape architecture, placing the reinforcing mesh, preparatory works for concreting
construction site, placing the reinforcing mesh, preparatory works for concreting, street paved with setts
block or Belgian block, decorative stone paving, under construction
a sett, rectangular quarried stone used in paving, under construction
a sett used in paving streets, roads and walkways, rectangular quarried stone
a sett used in paving streets, roads and walkways, rectangular quarried stone, under construction
utility hole, maintenance hole, sewer hole, preparatory works in construction industry
stormwater drainage channel and placing the reinforcing mesh around
stormwater drainage channel and placing the reinforcing mesh around, maintenance hole and sewer hole
steel reinforcing, reinforcing mesh fabric, preparatory works on construction site
reinforcing mesh, preparatory works for concreting, placing the reinforcing mesh
reinforcing mesh on construction site, preparatory works in construction industry
preparatory works in construction industry, preparatory works for concreting
preparatory works for finally concreting, a manhole, alternatively personhole
placing the reinforcing mesh, preparatory works for concreting
person hole, utility hole, maintenance hole, sewer hole, drainage channel, preparatory works for concreting
maintenance hole, sewer hole, storm water drainage channel, preparatory works for concreting
a manhole, alternatively person hole, utility hole, maintenance hole, sewer hole, reinforcing mesh, preparatory works for concreting
thermal energy distributed, the flow and return steel pipes without thermal insulation, old pipes
the flow and return steel pipes are placed underground into concrete ducts, pipes without insulation, old pipes
concrete ducts for underground pipes, to maintain proper pipe position in the ducts, simple support elements and guide elements are placed, district heating pipelines network, old rusty
district heating pipelines, the pipes were insulated on site using typical mineral wool and wrapped with a protective layer of fabric, old pipes
hot water, district heating pipelines network, pipes placed underground in concrete ducts
distribution of thermal energy, hot water, concrete ducts for underground pipes
the worker easily pulls the loosened parquet lath, dust that easily collects behind the lath
the worker holds a piece of dust that easily accumulates behind the loosened parquet lath
the parquet lath is raised, the worker easily lifts loose lath
slightly raised parquet lath, loose nail in parquet lath
loose parquet lath and dust behind it
loose nail in parquet lath, the worker shows what problem is with parquet lath
dust that collects under the raised parquet lath.
工人連接管道
the worker bends the sample and shows how elastic waterproofing can be, waterproofing material made on the basis of cement
overlap of two PVC membranes, spot welding with hot air
bad welding, overheating
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