Conventional connector for casing string can't meet the demand of seal and connection in solid expandable tubular and presented a new threadstructure for an expandable casing connector.
传统的套管接头不能满足连接与密封要求，并设计出了一种新型的膨胀连接螺纹结构。
2
That is, you make sure that only one thread at a time can access a certain data structure by locking and unlocking it.
这就是说，通过线程的锁定和解锁，对于某一数据结构，确保某一时刻只能有一个线程能够访问它。
3
This allows you to create an arbitrarily complicated data structure for the thread to work on, and pass it in as a single pointer.