Thesis? It is the main starting point of the article. Vernacular point is what you wrote in this article. It can be very concise. Just write one or two words. If you want more, you can write a lot. Generally, an article with about 3 keywords will do. It's better to have certain rules for subject words, such as writing from a big aspect to a specific aspect. Such as: electronic RF technology RF module detection. This can be the key word of an article.

Generally written in front of relevant arguments.