This is followed by a lot of "FF" bytes that are used to pad the result to make sure that it's big enough.

后面是一大堆“FF”，用他们填充这个结果，使之足够大。

youdao

I’m a big fan of taking really long walks (between 2 and 3 hours) in the park. I usually bring my camera, a writing pad and my thoughts.

我非常热衷于在公园里远足（大约2-3小时），我经常带着相机，记事本和我的想法出门，倾听鸟叫虫鸣和风吹过树木的声音。

youdao

A big mistake is to pad out your writing with unnecessary words and phrases. Remember that the purpose of your writing is to communicate your ideas clearly.

一个巨大的错误就是用一些不必要的单词和词组让你的文章变得冗长。你要牢记你写作的目的是为了更清晰地交流你的想法。

youdao

He made a big pad save with under 5 minutes left in the second to keep the Rangers ahead.

WSJ: Lundqvist, Brassard keep Rangers alive vs. Caps

One is that we use it as the big launching pad for discussion, the president takes it as a centerpiece of what he wants to do in terms of demonstrating that he is concerned about these issues and that he does want to try to bring the two parties together, essentially the kind of things he campaigned on in his election.

CNN: Will politicians take deficit cutting seriously?

Also, Big Agnes recommends using their sleeping pad with the bag for underneath insulation.

FORBES: Sleeping Softly on the Roof: Sleeping Bag Reviews