专用锁 meaning in English

special lock

Operation to fail because of another user is writing to the xml file and has an exclusive lock on the file
另外，也可能因为另一个用户正在写入xml文件而且文件上有专用锁，而发生无法执行
If each thread needs to use a particular object and has to wait to obtain an exclusive lock on that object before executing , the threads will all cease executing and back up behind one another , causing poor performance
如果每个线程都需要使用一个特定的对象并且必须等待到获得该对象的专用锁后才能执行，则这些线程都将停止执行，一个排在另一个的后面，从而导致性能降低。
Open the small door to the lower and rear part of the machine , you can see the general switch of the machine , audio switch , optical drive , floppy disk drive . you can do simple operation over the computer . unlock the special lock , the whole lower part of the cabinet can slide backward , and then the industrial control chassis as well as the mainboard , cpu and hard disk can be seen
在一体机的下部只要打开后方的单独小门，就可以露出一体机总开关，音响调节及主机光驱软驱，对主机进行简单的操作另外打开专用锁后可使整个下部箱体沿轨道向后出，露出工控机箱和装在其中的主板cpu硬盘，以便进一步进行维修升级操作，松开四个紧固螺丝即可方便的取出工控主机箱。