This article proves that rolling operation can largely enhance fatigue strength through the research on the cold rolling operation of thread root of the drilling tool joint.
通过石油井下钻具接头螺纹冷滚压工艺的研究可以证明冷滚压可大大地提高接头的疲劳强度。
This tracing starts with the root set, which consists of internal structures such as thread stacks and global references to objects.
这个跟踪以根集 开始，它由一些内部结构组成，比如线程栈和对象的全局引用。
GC roots can be found in the root stacks, in thread execution stacks, and in object and class fields.
GC根能在根堆里找到，在线成执行堆，在对象和类域里。
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