If a request for exclusive access to the resource is unlocked, this method locks it.
如果独占访问请求的资源没有被锁定，则这个方法锁定它。
You use the lock method to gain exclusive access to the file.
使用lock方法获得对文件的独占访问。
The identification method is exclusive.
薄层色谱鉴别方法专属性强。
The identification method is exclusive.
薄层色谱鉴别方法专属性强。
应用推荐