单词visual aid
un.: 目视助航设备；目视航标
网络: 直观教具；视觉教具；助视器
直观教具:
a picture, video, etc. used in teaching to help people to learn or understand sth
目视航标
目视助航设备
n.modelfilmvideochartillustration
The Visible Borders visual aid displays dotted borders around the elements that have hidden borders or no borders on a page .
“可视边框”视觉帮助会在网页上具有隐藏边框或没有边框的元素周围显示虚线边框。
This visual aid displays the margins and padding of every page element .
此视觉帮助会显示每个网页元素的边距与填充。
The Empty Containers visual aid displays a dotted rectangle around empty elements on a page, as shown in the following illustration.
“空容器”视觉帮助在网页上的空元素周围显示一个虚线矩形，如下图所示。
visual aid system is not new, as early as the 18th century, the designer painted in the head on a variety of lines or patterns.
视觉辅助系统并不新鲜，早在18世纪，设计师就在杆头上画上了各种线条或图案。
Instead, select the element and use the Block Selection visual aid, which allows you to drag the resize handles.
而可以通过选择该元素，然后使用“列方式选定”视觉帮助，来拖动调整大小手柄。
To provide and ensure the visual aid, tools, instruction or technical support to shop-floor to catch up the quality.
为现场提供帮助、工具、指导或技术支持、以解决质量问题。
However, the role of visual aid instrument in EFL learners"listening comprehension needs to be explored.
然而，视觉辅助工具在外语学习者听力过程中的作用却还缺乏深入的研究，尤其缺乏实证性研究。
Also, do not stand between the visual aid and the audience.
当然，也不要站在教具和观众之间；
To better isolate and see what each visual aid does, it might help to create a blank page and insert a few elements.
为了更好地确定和了解每个视觉帮助的用途，创建一个空白网页然后插入一些元素可能比较有帮助。
Carefully consider the features of an effective visual aid after reviewing course materials.
复习完课程材料后，仔细思考“有效的视觉辅助教材有哪些特征”这一问题。