hydraulic circuit短语¹⁴⁴⁹⁷²⁺² 基本例句 油路; 水压管路; 液压循环管路; 液压系统; 液压管路; 液压回路,液压传动系统图 A hydraulic vibratory system is developed for vibratory pile pressing. It can produce variable pressure with a specified frequency in hydraulic circuit for hydraulic static pile pressing machine. 为液压静力沉桩机液压系统的压桩油路中产生一定频率压力变化，实现振动压桩而研发了一套液压振动系统。 cnki