elongationKK [ˏilɔŋˋgeʃən] /ˌilɔŋˈɡeɪʃən/发音名词1伸长、延长、拉长Heat causes a slight elongation of the metal bar.热会使金属棒略微伸长。2延伸部分、加长部分The new elongation of the runway allows larger planes to land.跑道新增的延伸段让更大的飞机得以降落。3伸长率、延伸率工程Engineers measured the elongation of the cable under load.工程师量测了缆线在负载下的伸长率。用这个字练口说→