现成可用的 meaning in English

available

As far as i can determine , no dtd called
根据我的判断，根本没有现成可用的称为
Instead of writing your own cryptographic software , use the microsoft cryptographic api that is already available
不要编写您自己的加密软件，应使用现成可用的microsoft加密api 。
The power of xslt and the ready availability of xml transformation tools do wonders for ensuring that no one ever has to be chained to any particular xml language for any particular task
强大的xslt和现成可用的xml转换工具确实是一个奇迹，没有人因为了完成某项任务而必须使用特定的xml语言。