2009年度杰出土木工程成就奖得主,橘郡地下水补充系统解决了这个问题的前一部分,通过净化废水提高了供应量。
The 2009 OCEA winner Orange County's Groundwater Replenishing System helped tackle the first part of that equation, increasing supply by purifying wastewater.
目前这个地区已有1200余件刻有文字的文物出土,其中包括涂墙,陶罐,动物骨头和贝壳,其活跃时间大约为公元前600年至公元前400年之间。
Some 1200 inscribed objects have been found, ranging from painted wallsto pots, bones and shells. The date of the script appears to liesomewhere between 600 and 400 BC.
1996年,研究小组在此出土了带有石制工具切痕迹象的羚羊骨、马骨和其他哺乳动物的骨骼,其年代要回溯至250万年前,这是古人类有使用工具迹象的最早时期。
In 1996, the team uncovered antelope, horse, and other mammal bones showing the telltale cut marks of stone tools-at 2.5 million years, one of the earliest signs of tool use.
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