Keywords are words that have substantial meaning to express the central content of the paper. Not every phrase can be used as a keyword. Please check the number and accuracy of the keyword.
Keywords are words that have substance in expressing the content of the thesis center, not every phrase can be used as keywords, please check the number and accuracy of keywords.
Key words are words that have substantial meaning to express the central content of a paper. Not every phrase can be used as a key word. Please check the number and accuracy of key words.