ULTRASONIC BRAZING OF ZR-BASED BULK METALLIC GLASS AND 1060 AL ALLOY USING ZN-3AL FILLER METAL




CONSERVATION TILLAGE METHOD

Water-retaining roughnesses (holes, non-continuous furrows, micro-lagoons) come into being on the field surface at its tillage.They prevent a backflow, an erosion on slope lands and improve moisture content the soil.However, in the last decades such knit booties methods of a soil tillage are not used and the equipment for them are not manufactured.

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