This problem is commonly referred to as head-of-line blocking.

这个问题统称为head-of-line blocking（对头阻塞）。

youdao

Head-of-line blocking exists in input queuing used by ATM switching element , which severely affects the throughput , and the cell lo ss is also very large.

ATM交换单元采用的输入排队由于存在队头阻塞严重影响了吞吐率，并且信元丢失率也很大。

youdao

It found a hiding place, so I took the head while shooting indiscriminately, then, the house smoke everywhere, blocking my line of sight, "the spider will not then take the opportunity to attack me?"

它找了个地方藏了起来，于是我拿着喷头一阵乱射，这时，屋子里四处都是烟雾，挡住了我的视线，“蜘蛛不会这时趁机来偷袭我吧？”

youdao

It found a hiding place, so I took the head while shooting indiscriminately, then, the house smoke everywhere, blocking my line of sight, "the spider will not then take the opportunity to attack me?"

它找了个地方藏了起来，于是我拿着喷头一阵乱射，这时，屋子里四处都是烟雾，挡住了我的视线，“蜘蛛不会这时趁机来偷袭我吧？”

youdao