作者: Raymond A Gurries , John Curlett
DOI:
关键词: Simulation 、 Control valves 、 Engineering 、 Hydraulic control 、 Scraper site 、 Acoustics 、 Cross slope
摘要: This invention relates to the control of height or cross slope both an earth working tool such as a scraper blade with achieved by use external elongated reference member disposed along path be traveled actuate hydraulic valve ram used move tool. A pendulum-actuated is disposition.