Incremental is used to describe something that increases in value or worth, often by a regular amount.
例句
...our ability to add production capacity at relatively low incremental cost...我們以相對較低的邊際成本增加產能的能力We are seeking continuous, incremental improvements, not great breakthroughs.我們在尋求持續的、漸進的改善,而不是重大的突破。
英英詞典釋義
Adjective
1. increasing gradually by regular degrees or additions;
"lecturers enjoy...steady incremental growth in salary"