These are initialized at start of day in a function called inet_init in linux/net/ipv4/af_inet.c (as TCP and UDP are part of the inet family of protocols).

它们都是在 linux/net/ipv4/af_inet.c 文件中一个名为 inet_init 的函数中进行初始化的（因为 TCP 和 UDP 都是 inet 簇协议的一部分）。

youdao

Start the day by filling up a half-gallon jug with water (or any combination of smaller bottles that equals 64 ounces).

在半加仑的罐子里装满水（或者任何等于64盎司的小瓶子的组合）以开始新的一天。

youdao

Whatever you do at the start of the day sets the mood for the rest of the day.

无论你在一天的开始做什么，都会为接下来的一天带来好心情。

youdao

It looked at the effects of a later start to the school day.

VOA: special.2010.07.07

So let me start off with-- is this the first day of shopping or was it yesterday?

首先我想问一下,第一次的试听课是今天还是昨天

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

What this means, if you average it out, is that since children start learning their first words at about their first year of life, they learn about nine new words a day.

如果你将这个数字平均一下,这意味着,儿童从一岁左右,学习第一个词开始,每天学会九个新词

耶鲁公开课 - 心理学导论课程节选

Nine of Kent's players failed to turn up on time for the start of the second day of their match against Surrey, despite having left their Bayswater hotel at 0830BST.

BBC: Cricket finds new excuse

Plan A for Australia at the start of the day was to wrap up India's tail.

BBC: Australian pair dent Indian hopes

Westwood's quest for the world number one spot had been the focus at the start of the day.

BBC: Martin Kaymer wins Dunhill Links Championship