The results showed that the marginal effect index could be used as a choice for tolerant dense planting potato breed and as a parameter of potato plant density.

结果表明，边际效应指数可作为选择耐密马铃薯品种和确定马铃薯品种种植密度的指标。

youdao

He noted though that while this purchase in itself will not do much for Dell's financials, the view is the company will be doing more of these purchases, with the combined effect having marginal impact on growth.

FORBES: Magazine Article

Or would the effect be marginal?

FORBES: Majoring In The Humanities Might Soon Cost You More In Florida

Total government spending declined for the past two years with only marginal effect on GDP growth.

FORBES: Budget Cuts Don't Stop Bull Markets