The Texas A&M and University of Houston researchers focused on a certain type of piezoelectric material, which is able to convert energy when it is manufactured at around 21 nanometers thick.

德克萨斯A&M大学和休斯敦大学的科学家们将研究重点放在一些压电材料上，它们只有21纳米的厚度，却能够转换能量。

youdao

M: Frau Schmidt, do you think if I asked the Captain tomorrow about the material...

玛：施密德太太，你想我明天问上校布料的事……

youdao

M: But if I could just have some material...

玛：只要给我一些布料……

youdao

These would have been inscriptions either on pottery, which the earliest ones are,or on stone, but otherwise I'm sure there was writing on perishable material-wooden plaques, probably not yet paper, but these would have been destroyed.

有些是刻在陶器上的铭文,最早期的时候,是刻在石头上的,但另外,我能肯定,有些是写在易腐蚀的材质,比如木头,或者瓷片上的,当时应该还没有出现纸,但是这些都被毁坏了

耶鲁公开课 - 古希腊历史简介课程节选

In summary, Garage Inc works because the material chosen is not a million miles away from the band's own repertoire - I'm looking forward to the sequel - 'Metallica play Manilow'.

BBC: Garage Inc - Metallica

According to the Hickory Daily Record, construction-related fires like this cannot be started before 8 a.m. and new material cannot be added to existing fires after 6 p.m.

FORBES: Apple Plans To Build Massive Solar Farm In North Carolina