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котлован (Others added that a change in the environment, such as water underground that shifts its course of direction, can lead to a build-up of pressure that stresses the wall. Adebar, however, said in this case that the soil that crashed to the bottom of the excavation pit appeared in the video to be quite dry. “That suggests there wasn’t a big buildup of water behind that caused it, unless it started fracturing a day ago and all the water leaked out.”  vancouversun.com ART Vancouver) | |||
| котлован (MichaelBurov) | |||
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| котлован под фундамент (Val_Ships) | |||
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excavation pit : 7 短语, 4 学科 |
| 建造 | 4 |
| 石油/石油 | 1 |
| 矿业 | 1 |
| 采石 | 1 |