直译：Great waves sweeping away sand

Only The Strong Survive... 也许比较适合slogan吧，呵呵，仅供参考。:-)

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Note added at 29 mins (2008-04-01 08:11:05 GMT)
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REF: 转贴:

“因此，不管市场如何变化，受益的无疑还是消费者。‘物竞天择,适者生存’。相信,今年通过市场的大浪淘沙之后,家装行业与消费者会寻找到一个双方最为理想的契合点。”

...after the tides of market have washed sands away by the end of this year and real gold emerged, the industry and consumer will eventually meet in each other's best terms.

“优胜劣汰的集训结果已经出来了，有一种‘物竟天择，适者生存’的残酷竞争，...曲圣卿的“自愿”退出就是其中一个有序竞争良性循环的结果。 大浪淘沙始见金”

... he threw in the towel as the result of a virtuous cycle of orderly competition. After all these tough trials, only the most endurables survive.

“ '物竞天择,适者生存'是自然界的铁律,同样也是中国汽车产业发展必须遵循的规则。相信在经过大浪淘沙之后,中国汽车产业将更加富有生命力。”

one should be confident that the tides of market have washed sands away, the industry will come out stronger and more vibrant.


“惠州自宏观调控以来的十年，洗刷了上千的房地产开发企业，大浪淘沙，只有几十家抖擞依然。达尔文有言在先：物竞天择，适者生存，此言不虚。 ”

After over a decade of regulation, thousands of real-estate developers have been washed away like sands by the harsh forces of market

etc......

there are many many options, but as long as you render the
"harsh" connotation of the "大浪"and "selection"

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Note added at 1 hr (2008-04-01 08:44:33 GMT) Post-grading
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Glad I helped. ;-)