"TM" is the abbreviation of "trademark" in English, and it is a trademark symbol. It refers to a commodity trademark that has been registered (applied for registration) in the Trademark Office, or the holder declares that it has rights.

"Ton" is a standard first-class word (commonly used word) in modern Chinese, which belongs to pictophonetic characters in Liu Shu. The basic meaning of "ton" is the unit of weight. In the metric system, one ton is equal to 1000 kg, such as tonnage and ton-km. The extended meaning of ton is the unit for calculating the volume of a ship, and one ton is equal to 2.83 cubic meters.