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[Important] What to do if the app won't start
Please try the steps in Q3 on the following page.
https://oneswing.net/faq/android_faq.html
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The ONESWING dictionary directly incorporates the contents of the Iwanami Physics and Chemistry Dictionary, 5th Edition, CD-ROM Edition (Iwanami Shoten), a science and engineering CD-ROM dictionary covering a wide range of fields, with a focus on physics and chemistry.

■Wide Range of Fields Covered
With a focus on physics and chemistry, the dictionary covers a wide range of fields, including astronomy, geophysics, geology, mineralogy, meteorology, oceanography, mathematics, information science, biology, pharmacology, and engineering.
In addition to searching for approximately 22,000 terms and names, you can also search for chemical formulas.
It also includes indexes in Japanese, European (English, French, German), Russian, and chemical formulas.

■ Extensive Search Functions
- Headword Search
Search for approximately 22,000 terms and names. Searches are also available in English, French, German, and Russian.

- Chemical Formula Search (Combined Search)
Search for approximately 2,200 chemical formulas.

- Japanese Index, European (English, French, German) Index, Russian Index (Menu Search)
Three indexes are available: Japanese, European, and Russian.
The European and Russian indexes also include Japanese notation, so it can also be used as a Western scientific terminology dictionary.

- Chemical Formula Index (Menu Search)
Three indexes are available: a chemical formula index, a chemical formula index (reverse lookup), and a chemical substance name index.

- Appendix (Menu Search)
The comprehensive appendix from the popular Iwanami Dictionary of Physics and Chemistry, 5th Edition, is also included.

■ Integration with Wikipedia Japanese (Online Dictionary)
You can also search the free online dictionary, Wikipedia Japanese, in one search.

■ About the ONESWING Search Engine
This app uses a dictionary search library with fast, comprehensive search functions.

■ Support Information
For inquiries after purchasing this product, please contact the ONESWING Support Center.
*Please contact the publisher for information on dictionary content.

■ ONESWING Support Center
Reception Hours: 24/7
Reception Website: https://www.oneswing.net/
Inquiries are accepted via the "Inquiries" page at the top of the site.
*We do not accept inquiries by phone. Thank you for your understanding.

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★Please download via Wi-Fi★
※Please use Wi-Fi. (A 100M fiber optic connection is 1/6 the speed of a mobile connection.)
※We recommend plugging in a charging cable to prevent battery drain during download.
*Download time: Approximately 10 minutes (using a mobile network)

■How to Download Content
1. Launch the application.
2. The first time you launch the app, a dialog box will appear asking about downloading content. Select "Yes."
3. A dialog box will appear asking about your Wi-Fi connection and battery level. Select "OK."
4. Select the "Start" button.
5. Use the device's back key to return to the previous page.
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