On the basis of the mechanical behavior of box girders, the stress design method is brought forward against the PC box girder bridge cracking.

根据箱梁结构的受力特点，提出采用应力设计方法解决预应力混凝土箱梁的受力开裂问题。

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A study of the stress and strain distribution of anchorage zone in a long span PC box girder was undertaken in the background of Hangzhou Bay Bridge project.

本文以杭州湾跨海大桥北航道非通航孔桥为工程背景，对大跨度预应力混凝土箱梁锚固区混凝土的应力应变分布特征进行了分析研究。

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PC box girder with corrugated steel web is a new type of steel-prestressed concrete composite structure, which is used widely because of its many advantages.

波形钢腹板PC箱梁结构是一种新型的钢-预应力混凝土组合结构，由于其自身的诸多优点应用日趋广泛。

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So in the future, when you power up a terminal, a laptop, a PC, a netbook, or a cellphone, immediately, instantly, you see a box.

在未来，当你打开一个终端时，比如笔记本电脑，PC机，上网本，手机，马上就能看到一个搜索框。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选

Well, Dell did try hard to reinvent itself, moving away from the cheap uninspiring PC box maker it was, and spending billions at it.

FORBES: Dell 2.0: Are We There Yet?

But enough to make a 57% jump in ALL box PC sales?

FORBES: Connect

Not only does the OS bring in billions in profits, it provides users with a familiar interface, whether it is on their PC, personal digital assistant, set-top box, Tablet PC or cell phone.

FORBES: Sony, Matsushita Team Up On Linux