Here are a few options for the description of the WordPress post tag “應用科學” (Yìngyòng Kēxué, Applied Science) in Traditional Chinese, ranging in tone and focus:

**Option 1 (Concise & General):**

> 針對實際問題和創新解決方案的科學領域。涵蓋各種應用科學領域，包括工程、醫學、環境科學等。

> **Translation:** Scientific fields focused on practical problems and innovative solutions. Encompasses various applied science disciplines, including engineering, medicine, environmental science and so on.

**Option 2 (Slightly More Detailed):**

> 探索如何運用科學知識和技術，解決現實世界中的問題。本標籤下的文章將深入探討應用科學的不同方面，以及它如何影響我們的生活和社會。

> **Translation:** Exploring how to apply scientific knowledge and technology to solve real-world problems. Articles under this tag will delve into different aspects of applied science and how it impacts our lives and society.

**Option 3 (Focusing on Practicality):**

> 了解如何將科學原理轉化為實際應用。本標籤包含與應用科學相關的文章，例如工程、技術應用、創新發明等等。

> **Translation:** Learn how to transform scientific principles into practical applications. This tag encompasses articles related to applied science, such as engineering, technology applications, innovative inventions, and so on.

**Option 4 (Emphasis on Innovation):**

> 應用科學是創新的關鍵。本標籤收集了有關如何利用科學知識、突破科技限制、開發新技術，並改善我們生活的文章。

> **Translation:** Applied science is the key to innovation. This tag collects articles on how to leverage scientific knowledge, overcome technological limits, develop new technologies, and improve our lives.

**Option 5 (If the blog focuses on specific areas):**

> 深入探討應用科學的世界，關注[mention specific areas like 醫療、工程、環境科學等， if applicable]。了解最新的研究成果、技術進步，以及它們如何影響我們的未來。

> **Translation:** Dive into the world of applied science. Focus on [mention specific areas like medicine, engineering, environmental science, etc., if applicable]. Learn about the latest research findings, technological advancements, and how they impact our future.

**Which one to choose?**

* **Choose Option 1** if you need a simple and broad description.
* **Choose Option 2 or 3** if you want a more informative overview.
* **Choose Option 4** if your blog highlights innovation.
* **Choose Option 5** if you have a specific niche within applied science.

Remember to adapt the description to your blog’s specific content and audience. Good luck!