economical application的用法和样例：
例句
- An economical and practical detector in pentaerythritol production, its principle and application are introduced.
介绍季戊四醇生产中比较经济实用的一种检测装置，对其原理和实际应用加以论述。 - Success in this demanding application in Xinzhu Hi-tech Park established the Yang's reputation.
本司会因客户需求设计最佳产品组合，使其达到经济实用的双重目的。
