(1) product structure: for example, which devices are the hardware structure of mobile phones, which components are the structure of production equipment, which components are the structure of biological detection devices, and so on;
(2) Method category: such as website, APP, window and other production methods; Synthesis methods and detection methods of compounds; Cell culture, amplification and other methods; Sludge treatment, garbage treatment and other methods; Product manufacturing, processing methods, etc. ;
(3) Uses: For example, it is found that pesticides also have the function of weeding; Cold medicine can also be used to relieve heart pain.