TRANS CHIN WELD INST is a specialized term used in the field of welding to describe a particular technique. However, there are several synonyms that can be used to convey a similar meaning. One such synonym is "fusion welding", which refers to the process of joining two materials by melting them together. Another synonym is "butt welding", which specifically refers to the technique of joining two components end-to-end. Additionally, "arc welding" represents a broader category of welding techniques that involve the use of an electric arc to create high temperatures for melting and joining metals. These synonyms help to provide variations in language and facilitate better understanding of the welding process.