semaphoren.信号灯;旗语v.发出信号或旗语
semaphore counterweight臂板平衡锤
semaphore counterbalance臂板平衡锤,臂板重锤
semaphore type indicator臂板式表示器,臂板复示器
semaphore queue management[计] 信号量排队管理
semaphore arm direction indicator臂板信号指挥灯
Semaphores and Process Mutual Exclusion信号量和进程互斥