Another concern is on-stack replacement (OSR), an advanced JVM feature that helps optimize certain code structures (see Resources). Consider the code in Listing 4.
另一个问题是堆栈上替换(osr)，这种高级JVM特性有助于优化某些代码结构(参见参考资料)。
2
The Perl programming and scripting language (see Resources) is often used as a supremely powerful replacement for the tr and sed commands you've just looked at.
Perl 编程和脚本语言（请参见 参考资料部分）的功能非常强大，通常可用来取代前面介绍的 tr 和 sed 命令。
3
Cost of human resources can be measured by methods of historical cost, replacement cost, opportunity cost, and so on.