不实用的英文：
impracticality ;impracticalness
- A theory that proved impractical in practice.
一个被证明在实践中不实用的理论 - others wondered why I had chosen such an impractical subject
还有人奇怪我为什么选择了这么一种不实用的学科。 - Since the detailed expression is somewhat unwieldy we present it here in its general form
由于详细表达有点不实用，我们在这里提出了它的一般形式。
n. 不切实际, 办不到
- His ideas are, in the main, impractical.
总体来说，他的想法是不切实际的。 - Geniuses are supposed to be eccentric and hopelessly impractical.
天才通常都被认为行为古怪而且毫无实践能力。 - An academically cleverbut totally impractical young man
学有专长但毫无实际工作能力的年轻男子. - The heavy damping makes it impractical to read gravity directly from the displacement of the beam
高阻尼不能使其直接从横臂的位移读出重力值。 - others wondered why I had chosen such an impractical subject
还有人奇怪我为什么选择了这么一种不实用的学科。
[ impractical ]的相关名词;[ impracticality ]的相关名词
- Your price is practicable(impracticable.
你方价格是行得通的（行不通）。 - His ideas are, in the main, impractical.
总体来说，他的想法是不切实际的。 - Geniuses are supposed to be eccentric and hopelessly impractical.
天才通常都被认为行为古怪而且毫无实践能力。 - Refloating the sunken ship intact proved impracticable because of its fragility.
由于沉船的易碎性使整艘沉船的重新上浮被证明是行不通的 - An academically cleverbut totally impractical young man
学有专长但毫无实际工作能力的年轻男子.