现场调查和资料的收集表明，尽管止回阀在现场得到了广泛应用，但有些并没有达到预期的效果。

Investigation and the materials of collection indicate that though the Check valve is used widely in practice, some have not reached the anticipated result.

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事实上，在行业中我们所进行的这种类型的综合并没有达到我们客户们的预期效果。

The truth is that the kind of integrations we've been able to achieve in the industry have not met the expectations of what our customers have wanted.

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值得一提的是，尽管旅行社网站的数量越来越多，网站质量却参差不齐，绝大多数网站并没有达到预期的宣传销售效果。

With the number of travel agency websites growing, the website quality is posing as one big problem, which calls for further research.

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