为解决以上两个问题，优选了泡沫液配方，采用了循环泡沫系统装备流程，使泡沫基液可循环使用，而空气排放到大气中。

In order to solve the two problems, the formulation of foam was optimized. The adoption of circularing foam system equipment made foam be used many times but air can be emitted into atmosphere .

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当房地产泡沫重创了内华达州与亚利桑那州时，坐座在落基山两侧的地区却遭受了高于全国整体水平的衰退。

WHILE housing bubbles battered Nevada and Arizona, most of the territory sitting astride the Rocky Mountains had a better recession than the country as a whole.

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它们通常由乙烯基醋酸乙脂(EVA)泡沫或聚氨酯(PU)材料制成，很多情况还填充了空气或胶体。

It's generally made from ethyl vinyl acetate (EVA) foam or polyurethane (PU) and in many cases is supplemented by air or gel inserts.

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