500-fold upgrade met.

[Atenza]

Пожалуйста, помогите перевести.

Выражение встречается в следующем контексте:
The settling characteristics of the flocculated Cu2S precipitate were excellent during this pilot plant campaign. The flocs settled rapidly, producing clear thickener overflow solutions. The solids content increased from ~0.3 g/L (~0.03%) in the reactor to 145 g/L (14.5%) in the thickener underflow, after one week of operation. This represents a 500-fold upgrade in % solids.

честно, встречаю такое впервые.
Заранее спасибо

[solidrain]

(имхо) 500-кратное улучшение...

[Peter Cantrop]

повышение, увеличение содержания