Sheets of rain were falling and produced a black gloss on the asphalt.

大雨倾盆而下，使沥青有了黑色的光泽。

《柯林斯英汉双解大词典》

Sheets of rain, or dust plus electricity. Snow too.

大片的雨，或者灰尘加电。雪也是。

youdao

One day dark clouds came in, burst open and poured sheets of rain.

一天，乌云密布，突然间便暴雨如注。

youdao

"Other than that it was driving rain the first day." Crews visually scan for ribbons and sheets of oil.

VOA: standard.2010.07.05

There is a shortfall of 170, 000 high quality plastic sheets needed to improve protection from rain and snow in tents not designed to withstand the cold.

BBC: NEWS | South Asia | Quake survivors blankets appeal