单词	height hole
释义	height hole height hole See: altitude hole. height hole height hole No targets can be detected within the height hole.The blank area in the center of a plan position indicator-type radarscope display caused by the time interval between the transmission of a pulse and the receipt of the first ground return.
随便看	vacuummetr vacuum microelectronics vacuum moulding vacuum nitrogen sealer vacuum oil vacuum oil company vacuum operated electrical switch vacuum-operated throttle modulator vacuum out vacuum pack vacuum-packed vacuum-packed life raft vacuum-packed on-man life raft vacuum pack technique vacuum pan vacuum pan salt vacuum pencil vacuum permittivity vacuum phenomenon vacuum phototube vacuum plating vacuum polarization vacuum polymer deposition vacuum pressure vacuum pressure swing adsorption

英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。