inequivalved shell

例句：

1. 1. The company's new product has a very inequivalved shell.
   公司的新产品有一个非常无效的外壳。
2. 2.The scientist found that the experiment had an inequivalved shell.
   科学家发现实验有一个无效的外壳。
3. 3. The inefficiency of the design led to an inequivalved shell.
   设计的不效率导致了无效的外壳。