The focus is really on eruptions in the last five years, but it might have some useful background material.

人们关注的焦点其实是过去五年的火山爆发，但它可能会提供一些有用的背景资料。

youdao

I went to the meteorological bureau five times, looked at material and talked to experts.

我也去过气象局，多达五次，查阅过相关材料，并且与专家也就此问题进行过探讨。

youdao

Each cell has five layers of solid material that has been deposited onto a paper substrate.

每个电池有五层放在纸质板上的固体材料。

youdao

The potato genome shows the order of ninety-five percent of the genetic material.

VOA: special.2009.11.03

His statement outlines how checks were conducted at three factories supplying the raw material and five slaughterhouses in Poland.

BBC: Burgers

In the future, it may be possible to produce systems with hundreds of petabytes, or systems that can hold all of the printed material ever produced times five.

FORBES: IT Revolution: How In Memory Computing Changes Everything

Now, a new process for creating semiconductors grown on graphene could see the super material commercialized in the next five years.

ENGADGET: New process for nanotube semiconductors could be graphene's ticket to primetime (video)