两级 [liǎng jí]

• two-stage
• 短语:
  • 两级抽样 two stage sampling;
  • 两级传动 double-stage driving;
  • 两级存储（器） two-level store;
  • 两级动作选择器 {讯} two-motion selector;
  • 两级阀 two-stage valve;
  • 两级放大器 two-stage amplifier;
  • 两级记录 two-level recording;
  • 两级加速器 two-stage accelerator;
  • 两级控制 two-step control;
  • 两级逻辑 two-level logic;
  • 两级膨胀复式蒸汽机 double expansion compound steam engine;
  • 两级伸缩缸 telescopic cylinder of two stages;
  • 两级伺服系统 two-stage servosystem; two-stage servo;
  • 两级随动系统 two-stage servo;
  • 两级锁定机构 two-stage holdback device;
  • 两级提升器 two-stage lift;
  • 两级调节器 two-stage controller;
  • 两级推挽放大 dual push-pull amplification;
  • 两级泄压循环 two-step decompression cycle;
  • 两级序列检测器 two-stage sequential detector;
  • 两级压力气体燃烧器 {热} two-stage pressure-gas burner;
  • 两级压缩机 two-stage compressor;
  • 两级预选 double preselection;
  • 两级蒸发 {化} double flash evaporation