%0 Journal Article %T Dual-circuit trenching depth control systems %A Efremov, A.N. %K dual-loop control systems, drain laying machine, laser transmitter, receiver, control panel, electro-hydraulic unit, working body, drain laying accuracy, satellite navigation control systems %J Melioration and Water Management %D 2026 %N 2025 %P 4 %I ANO Editorial Board Melioration and water management