弧弹性的英文：
arc elasticity

arc是什么意思：
n. 弧（度）；弧形物；天穹；弧光
v. 形成拱状物；形成电弧；走弧线

piercing by electric arc
电弧穿孔

The beach swept around in an arc.
海滩呈弧形伸展开来。

The secant of the complement of a directed angle or arc.
余割有向角的余角或弧的余割

An electric arc is struck by contacting the electrodes.
接触电极便击出电弧。

A rainbow arced gracefully over the town.
彩虹在小城上空画出了一道优美的弧线。

elasticity是什么意思：
n. 弹性，弹力；灵活性，伸缩性

elastic resilience
弹性回能|弹能

Rubber is elastic.
橡皮是有弹性的。

This plan is fairly elastic.
这个计划有相当的灵活性。

Elastic damping leaf damper
GB/T14654-1993弹性阻尼簧片减振器

The elastic in my pants has perished.
我裤子的松紧带老化了。