高频: high frequency 短语和例子超高频 ultra high frequency (uhf); 甚高频 very high frequency (vhf); 高频安培计 high frequency ammeter; 高频保护装置 carrier current protection; 高频变换器 high-frequency converter; 高频变压器 hi
应急: meet an urgent need; meet an emergency; meet an contingency; emergency; escape; crash 短语和例子应急之用 meet the need of emergency; 在应急情况下 in case of emergency; 供应急使用 for emergency use; 我们应该对任何应急情
