A lack of narrative drive leaves the reader with piecemeal vignettes.

述缺乏吸引力，读者读到的只是一些支离破碎的片段。

Clicking on this button will recompute the vignetting factors for each field based upon the current lens data.

点击这个按键将根据头数据重新计算每个视场的渐晕因子。