In speed terms, there's no difference between float and double on the more modern hardware.

在速度方面，比较新的硬件上float和double没有区别。

youdao

Each guest has her own single room, or shares, on request, a double room.

每位客人都有自己的单人房间，经要求也可共用双人间。

《柯林斯英汉双解大词典》

We'll have to double up on books; there aren't enough to go around.

因为书不够人手一册，我们只好合用了。

《牛津词典》

Also,there is constitutional protection against double jeopardy being put on trial twice for the same crime.

VOA: special.2009.08.31

And something that we'll see later on is that triple bonds, for example, are going to be stronger than a corresponding double bond or a corresponding single bond.

而我们以后还会看到三键，举例来说，应该更强，相较于相应的双键,或者相应的单键来说。

麻省理工公开课 - 化学原理课程节选

And this is the same periodic table that you're going to get in your exams, so it's good to practice doing your problem-sets with that periodic table so you're not relying on having the double check right there of seeing what the electron configuration is.

这也是你们考试时会用到的相同的表,这样你们就不会，所以使用周期表来做问题集,是很好的练习,这样你们就,不会依赖于再次确认,电子构型是什么了。

麻省理工公开课 - 化学原理课程节选

Police responded with tear gas, and officers riding double on motorcycles chased demonstrators.

CNN: STORY HIGHLIGHTS

There are larger physical challenges as well, since Wagner tuba players double on the French horn during the "Ring" when needed.

WSJ: It Takes Brass to Play the Wagner Tuba | By Barbara Jepson | The Ring of the Nibelung

Luetge followed Danny Farquhar out of the Seattle bullpen during the Angels' four-run sixth, giving up Trout's three-run double on his first pitch.

NPR: Trout Hits For Cycle, Drives In 5, Angels Rout M's