You can use vertical and horizontal rulers at the left and upper edges of the $[officename] Impress workspace to assist you in creating your slide. The sections of the rulers that cover the area of the slide are white.
在 $[officename] Impress 中，可以使用工作空间左侧和上侧的垂直标尺和水平标尺来帮助创建页面。标尺中页面区域对应的部分显示为白色。