earth levelling tractor

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Bulldozer — For other uses, see Bulldozer (disambiguation). A Caterpillar D10N bulldozer equipped with a single shank ripper. A bulldozer is a crawler (continuous tracked tractor) equipped with a substantial metal plate (known as a blade) used to push large… … Wikipedia
Harrow (tool) — In agriculture, a set of harrows is an implement for cultivating the surface of the soil. In this way it is distinct in its effect from the plough, which is used for deeper cultivation. They are commonly called harrows (plural) as they are used… … Wikipedia
Combat engineering — is a combat service support role of using the knowledge, tools and techniques of engineering by troops in peace and war, but specifically in combat. A combat engineer, in many armies also called pioneer or sapper, is a military specialist in… … Wikipedia

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