Linux POSIX信号使用sem_destroy来销毁无名称的信号。

Linux POSIX semaphores use sem_destroy to destroy the unnamed semaphore.

youdao

Linux POSIX信号使用sem_wait来挂起发出调用的线程，直到信号拥有了非零的计数值。

Linux POSIX semaphores use sem_wait to suspend the calling thread until the semaphore has a non-zero count.

youdao

蚂蚁储存食物，击退攻击者，并使用化学信号联系彼此以防被攻击。

Ants store food, repel attackers and use chemical signals to contact one another in case of attack.

youdao

So, in order to have fast transmission you do that by transmitting electrical signals; that happens pretty quickly.

所以 为了使信号迅速地传播,细胞使用电信号,它速度非常快

耶鲁公开课 - 生物医学工程探索课程节选

This is commonly used in the immune system as well, but it's a way of amplifying a signal.

免疫系统也常使用这种方法,但这主要是一种放大信号的方式

耶鲁公开课 - 生物医学工程探索课程节选

So what is shown here is the potential solution to potentially read out neural signals dragged from the brain and use these signals after some interpretations or decrypting if you will to drive prosthetic arms or computer cursors on the screen.

大家现在看到的是一种可能的解决方案,有助于解读病人大脑发出的神经信号,同时在经过翻译或者解码之后,使用这些信号，驱动假臂,或者电脑屏上的光标。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选