Boundary value problem of a plate with crack and defect such as circular hole is a multi-connected domain problem.

带有裂纹和缺陷孔洞的板的问题是一个多连域的边值问题，这类问题适合用边界元法所具有的高精度特性来求解。

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Another form of object loitering arises when arrays are used to implement data structures such as stacks or circular buffers.

当数组用于实现诸如堆栈或环形缓冲区之类的数据结构时，会出现另一种形式的对象游离。

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Top brands can be on the pricey side so if you're on a budget grab a cheap substitute such as a silver car sunscreen, reflective tanning mat or wrap a circular sheet of cardboard in aluminum foil.

名牌的反光板太昂贵，你可以用个便宜的替代品，比如银色的车用防晒遮光剂，反光的皮革衬垫，或者自己弄个一张包着铝箔的圆卡片。

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Ms. Van de Velde helped handle much of the furniture and finishes, choosing to go all white with splashes of color, such as a circular purple chair, a purple-and-gray rug with a tiled pattern and hot pink-and-royal blue wallpaper.

WSJ: Building Outside the Box

Attaching Sigma's optional dedicated 52mm DG filters such as the DG wide circular PL to the camera body extends the shooting possibilities.

ENGADGET: Sigma DP3 Merrill packs a Foveon X3 sensor and a fixed F2.8, 75mm-equivalent lens

While the last crop of robot dogs looked like squared-off, stylized versions of toy terriers, this new bunch resembles such Sanrio characters as Hello Kitty and Chococat, with big, circular heads reminiscent of cartoon characters.

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