层的边框以外留的空白 margin
使用table是由于一系列的开发点(象边框和浮动层)和它能很容易的扩展(例如添加侧边图象)所决定的。
Using a table here is arbitrary but simplifies a number of development tasks (such as borders and overall layout) and lends itself very well to further enhancements like side images
本实用新型由边框(1)、图片(2)、粘胶层(3)、衬板(4)、底板(5)、拼图单元(6)、刀切线(7)等组成。
The utility model consists of a frame (1), a picture (2), a mucilage glue layer (3), a lining plate (4), a soleplate (5), puzzle units (6) and a knife tangent (7).
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