The duty ratio was proportional to the surface roughness.

占空比与陶瓷层表面粗糙度成正比；

youdao

Combining the two conditions, the duty ratio can be calculated.

联立这两个条件，求解出了占空比的计算公式。

youdao

Moderate increase of the duty ratio is benefit to the reduction of porosity.

适当提高占空比有利于减少气孔数量。

youdao

For example, you didn't mention that the recent interest-rate rise on January 31st followed both an unexpected increase in the cash reserve ratio by the central bank and cuts to import duty on several items by the government in order to check inflation.

ECONOMIST: Is India still shining?