查询词典 class frequency

radio-frequency pumped：射频泵浦

radio-frequency pulse shape 射频脉冲波形 | radio-frequency pumped 射频泵浦 | radio-frequency radiation 射频辐射

radio frequency sensor：射频传感器

radio-frequency sensitivity 射频灵敏度 | radio frequency sensor 射频传感器 | radio-frequency separator 射频分离器

radio frequency heating：射频加热

radio frequency discharge 射频放电 | radio frequency heating 射频加热 | radio frequency probe 射频探针

radio frequency suppressor：射频抑制器,高频抑制器

radio-frequency structure 射频结构 | radio-frequency suppressor 射频抑制器,高频抑制器 | radio-frequency system 射频系统

radio frequency suppressor：射频变压器,高频变压器

radio frequency preheating 射频抑制器,高频抑制器 | radio frequency suppressor 射频变压器,高频变压器 | radio frequency transformer 射频变压器 RFT

radio frequency spectrum：无线电频谱

Radio Frequency Registration Board 无线电频率登记委员会 | radio frequency spectrum 无线电频谱 | radio frequency system 射频系统

radio frequency spectrum：射频频谱

radio-frequency spectroscopy 射频波谱学,射频谱学 | radio-frequency spectrum 射频频谱 | radio frequency sputtering 射频溅射

low-frequency radio telescope：低频射电望远镜

low-frequency pulp screen 低频筛浆机 | low-frequency radio telescope 低频射电望远镜 | low-frequency recording and reproducing head 低频记录重放磁头

low-frequency radio telescope：低频无线电望远镜

low frequency oscillator 低频振荡器 | low frequency radio telescope 低频无线电望远镜 | low frequency radio-range 低频无线电导航信标

radio-frequency accelerator：高频加速器

fadio-frequency 射频,无线电频率 | radio-frequency accelerator 高频加速器 | radio-frequency pacemaker 射频起搏器(心)

Bob Allcock, Solicitor General：法律政策专员区义国

船民 boat people | 法律政策专员区义国 Bob Allcock, Solicitor General | 菩提树 bodhi tree

herb：草药

大约在公元10世纪左右,通过喜好航海的荷兰人,波兰人开始认识茶叶. 但是,由于饮茶有明显的治疗某种疾病的效果,波兰人把"茶"同草药联系在一起. 于是出现了与草药(herb)相联系的"茶"字(herbata),既不接近于英文的"tea",也与俄语中的"chaj"相去甚远.