If they have a URI, they must be presented in the form you see in Listing 1: the absolute URI reference enclosed in Angle brackets.
如果它们有uri，那么它们必须表示为您在清单1中看到的形式：用尖括号将绝对URI引用括起来。
2
Symmetrical logo are formed symmetrically form the left and right Angle creating a mirror effect therefore, what you will be seeing on the left will be identical with the right.
对称logo以左右对称的形状营造出一种镜像效果，你在左半部分所见与右半部分如出一辙。
3
You can see how the Angle brackets and whitespace are escaped according to URI standard form.