求翻译：近十年来，利用污水厂“内碳源”技术在国外得到发展和应用，结合两个典型案例，介绍了活性污泥水解补充碳源技术工艺选择、特性及运行效率等方面的热点问题，以期为国内在开发活性污泥可持续性利用技术方面提供借鉴。是什么意思？

Over the past decade, the use of the wastewater treatment plant "carbon source" technology development and application in a foreign country, the combination of two typical cases, activated sludge hydrolysis supplemental carbon source process selection, characteristics and operation efficiency of the

In the past 10 years, the use of the sewage treatment plant PHAs" technology in the development and application abroad, combining two typical cases, the PHAs activated sludge hydrolysis added technology selection, features and operating efficiency of hot spots, with a view to developing the active s

In the recent ten years, the use sewage factory “in the carbon source” the technology in overseas obtains the development and the application, unifies two illustrative cases, introduced active sludge hydrolisis supplement carbon source technology aspect and so on craft choice, characteristic and ope

Over the past decade, the use of wastewater treatment plant "within the carbon source" technology development and application in foreign countries, combined with two typical cases, introduced the carbon source technology of activated sludge hydrolysis technology selection, performance and operating

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