单词：sustentation
sustentation的用法和样例：
例句
- Reliability of theory and sustentation of practice indicate that process design system is viable under the environment of net.理论的可靠和实践的支持表明，在网络环境中构建工艺规程设计系统是完全可行的。
- Without matter, there would be no sustentation for function activities.没有物质，功能活动就无法维持。
词汇搭配
- sustentation fund资助基金
- sustentation of forest森林维持
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