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Improvements in the construction of channels, particularly for irrigation (Machine-translation by Google Translate, not legally binding)
Improvements in the construction of channels, particularly for irrigation (Machine-translation by Google Translate, not legally binding)
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机译:改善渠道建设,尤其是灌溉渠道的建设(由Google翻译进行机器翻译,不具有法律约束力)
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摘要
Improvements in the construction of channels, particularly for irrigation, drainage or water conduction, characterized in that they are constituted essentially by a flexible, impermeable wall, joined by its two longitudinal edges superior to two stringers that a tight device maintains a constant separation. (Machine-translation by Google Translate, not legally binding)
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