system realizing function

• 系统实现功能

system realizing function的用法和样例：

例句

1. The function consists of a wrapper that grabs the lock, does its work by invoking a function whose name begins with two underscores, and releases the lock.
   这些函数由一个获取锁的封装调用构成，通过调用一个由双下划线组成的函数来实现功能，然后释放锁。