单词：elongations
音标：[ɪˌlɔ:ŋˈgeɪʃənz] ；
n. 延长( elongation的复数形式 ); 延长线; <机>延伸率; <天>距（角）
n. the quality of being elongated
n. an addition to the length of something
n. the act of lengthening something
n. an addition to the length of something
n. the act of lengthening something