There are five main aspects
1) Related books,
The content that can be written into a book is generally relatively mature, and a relatively good tool book Books tend to solve most problems.
2) Relevant national standards and industry standards
Many professional and technical knowledge needs to be mastered by consulting relevant national standards and industry standards, such as the detection methods of certain pollutants. Generally, the method announced by national standards is the arbitration method, which is more authoritative.
3) Related patents,
Patent documents often contain very novel and unique methods and technologies, but their feasibility needs to be considered by yourself.
4) Relevant scientific and technological articles,
Scientific and technological articles often have very novel methods, but many of the technologies disclosed in scientific and technological articles have not been tested by the market and may not necessarily be able to pay off. In reality, because for scientific researchers, marketability is not the key factor they consider.
5) Oral teaching and inheritance,
Many technical know-how cannot be found in texts and needs to be summarized in actual work, so the value of an experienced technical worker is often More than a freshly graduated Ph.D.