In designing a pontoon deck system which is made of light-weight and high rigidity material, strength calculation is one of the most concerned problems for designers at the beginning stage.

采用轻质高强铝合金材料设计舟桥的甲板时，其强度计算是初始设计者最为关心的问题之一。

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To offer DJs a more portable alternative to the professional 4-deck TRAKTOR KONTROL S4 system, the KONTROL S2 is centered around a new compact controller hardware.

ENGADGET: Traktor Kontrol S2 digital DJ system shaves a few inches and bones off its big brother

But there is no reason for Republicans to acquiesce to a system that stacks the deck against them.

FORBES: Paul Ryan's 'Kamikaze' Budget Is Surgery Without the Anesthesia

And many are fed up with a system in which the deck seems stacked against middle-class Americans in favor of the wealthiest few.

WHITEHOUSE: President Obama Addresses the Nation on Dangers of Default