名词
中文翻译：不实用性
同义词：
['unfeasibility', 'impracticality']
例句：
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1.The proposal was impracticable because of the lack of resources.
由于缺乏资源，这个提议是不可行的。
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2.The project faced impracticability due to unexpected delays.
由于意外的延误，这个项目面临不可行性。
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3. The design was impracticable for practical use, so it was scrapped.
设计在实际应用中不实用，因此被废弃了。