late 14c., from Medieval Latin elongationem (nominative elongatio), noun of action from past participle stem of Late Latin elongare "remove to a distance," from Latin ex- "out" (see ex-) + longus "long" (see long (adj.)).
权威例句
1. As I sit in a shadowy corner, I observe a slow and gradual elongation of his mouth.
坐在一个暗角落里我观察到他的嘴慢慢而逐渐地伸长.
2. Both flange and web exhibited satisfactory elongation characteristics ( i . e . 28 % ).
翼缘和腹板都有令人满意的延伸率 ( 即28% ).
3. This should not be confused with measurements of shoot elongation.
该情况不应与枝梢延伸测定混为一谈.
4. It was found that calcium reduced elongation of cucumber hypocotyls.