The technology and development trend of aluminum salt recovery were prospected.
在此基础上，对铝盐回收技术的发展趋势做出展望。
It lists the diversified material application of technology. It indicate the treatment technology and development trend about oily sewage.
列出了各种技术的具体应用，指明了各种含油污水处理技术的发展趋势。
While the existing technology and engineering investigation some shortage, also need to new technology and development trend for the corresponding research.
而现有工程勘测技术还有一些不足，还需要对新技术及发展趋势进行相应研究。
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