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rocky riverbed before frontier |
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| Soil preparation for cultivation |
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Furrowing |
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Soil preparation |
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| Earth-filling in farmland |
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delivery of the fertile earth |
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| Manual digging for earth |
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Railroad cart for earth delivery |
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| Prototype of farmlands |
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manual pile-up |
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| protecting embankment building |
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build irrigation channels |
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burying the rock |
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moving the rock |
