The frame element is used as a basis for many other diagram elements in UML 2, but the first place most people will encounter a frame element is as the graphical boundary of a diagram.

在 UML 2中，框架元件用于作为许多其他的图元件的一个基础，但是大多数人第一次接触框架元件的情况，是作为图的图形化边界。

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The interior boundary with the difference of fairing power being 2 replaced the paving boundary in the fairing step.

对于光顺算法，本文中不采用光顺平铺边界，而是采用光顺权值差2的内部边界。

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Results: (1) Meningiomas of the lateral ventricles had characteristic CT and MRI appearances, such as most tumors were somewhat round (81. 2 %, 13/16), with bulky volume and clear boundary.

结果：（1）侧脑室脑膜瘤具有典型的CT和MRI表现，即：病灶大多为类圆形（81．2％，13／16），体积较大，边界清晰。

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But the game turned when Walters could only pick out Steven Croft on the deep midwicket boundary to give Parry (2-31) his first wicket.

BBC: Parry inspires unlikely Lancs win

The club has also been facing falling home attendances, with a season low of 2, 833 turning up to watch the side's 3-2 defeat by Brentford in March, while just 4, 225 people attended the side's last home game at Boundary Park, which Oldham drew 2-2 with Southend.

BBC: Manager Dave Penney parts company with Oldham

The origin of this effect may lie at the boundary between the mantle, made up of viscous rock that extends 2, 900 km (1, 800 miles) below the crust, and the outer core, which is thought to be liquid iron with the consistency of water.

BBC: Earth's wobbles reveal deep secrets