elision
n. 省音，元音溶合；（书、演讲或电影中段落的）删除，删节；（尤指抽象观点的）结合
例句
To handle long functions, we collapse large blocks by default, using vertical elision.
为了处理长函数，我们通过垂直省略，缺省隐藏较大的语句块。
Copy elision is the only allowed form of optimization that can change the observable side-effects.
复制是唯一允许省略形式的优化，可以改变可观察到的副作用。
This optimization is called lock elision and is another of the JVM optimizations slated for Mustang.
这个优化叫做锁省略，是为Mustang安排的另一个JVM优化。
