High hardness, brittleness, abrasive sharp, good thermal conductivity.

硬度高，脆性大，磨粒锋利，导热性好。

youdao

The sharp, abrasive nature of the particles suggested they could have damaged the bodies of aircraft and the Windows - reducing visibility.

这些颗粒锋利而粗糙的性质，暗示着它们能损坏飞行器的机体和舷窗——这会降低可见度。

youdao

Ash particles from the early part of the eruption were especially sharp and abrasive, posing a possible threat to aircraft flying through the cloud.

火山喷发早期出现的火山灰颗粒特别锐利且粗糙，对通过它的飞行器可能造成威胁。

youdao

Mr Skele's previous two administrations fell apart amid sharp criticism of what opponents perceived as his abrasive leadership style.

BBC: Latvian PM resigns