液压专业英语词汇acceptable conditions许用工况actual conditions实际工况actual force实际输出力air contamination空气污染air consumption耗气量air conditioner unit空气处理单元air filter空气过滤器adjustable restrictive valve可调节流阀amplifier放大器amplitude ratio幅值比analogue amplifier模拟放大器anti-corrosive quality抗腐蚀性automatic cycle自动循环axial piston pump轴向柱塞泵back pressure背压bladder accumulator气囊式蓄能器bleed line放气管路bonded washer组合垫圈breakout pressure启动压力butterfly valve蝶阀cartridge valve插装阀 cavitation气穴charge pre