“实用性”造句

我相信了他的新装置的实用性.
I was persuaded of the usefulness of his new device.

图5-2人物角色的实用性的简单示例.
Figure 5 - 2 : A simplified example of how personas are useful.

吉他的试验均未能激起任何关于电收尘原理的实用性研究.
Guitar's experiments did not stimulate any practical study of the electrostatic - precipitation principle.

• #实用性