Refer to the section on semaphores in this article for the prototype for each of these System V semaphores.
关于每个 System V 信号量的原型，请参阅本文中有关信号量一节的内容。
2
The Boeing concept, below, also USES a V-shaped twinned tail section, and like the Lockheed jet, it also places the engines on top of the wings.
下图是波音的概念图，它也使用了V形的双尾部，与洛克西德的飞机一样，它也把引擎安置在机翼上部。
3
On Sunday, underground workers draining water from the flooded section saw swaying lamplight at the other end of the flooded v-shaped shaft, raising hope again.