A single arrow indicates a thread contention: One thread is waiting for another thread to release a lock.

一支单独的箭头指出一个线程竞争：一个线程正在等候另一个线程释放一个锁。

youdao

For example, assume one virtual processor is holding a lock and does not have enough cycles to release that lock.

例如，假定一个虚拟处理器持有一个锁，并且它没有足够的周期来释放这个锁。

youdao

A lock release or lock notify operation is analogous to a scheduling dispatch operation in the sense that the thread at the head of the highest-priority queue is acted on.

锁释放或锁notify操作与调度分派操作类似，因为都是对最高优先级队列头部的线程起作用。

youdao

The prototypes we got to try out carried the Level 10 range's chunky, aerated style -- with gaps in the bodywork and beefy catches to lock and release the arms.

ENGADGET: Thermaltake and BMW's Level 10 M gaming headset hands-on

And in May, Australian lock Justin Harrison requested an early release from his contract following an alleged incident during the club's end-of-season party.

BBC: Bath sign Australian back Carraro

The first is quite a doozy -- fairly often, pressing the shutter release in record mode will simply cause the camera to lock up.

ENGADGET: Pentax Q interchangeable lens camera review Hands-on