One or two on the mainland is equal to 50 grams, and two or two is equal to 50×2= 100 grams.
Therefore, Hong Kong's "goodness" is 0.75 times that of the mainland, that is, Hong Kong's "goodness" is 75 grams that of the mainland.
Convert it into grams, and it will be clear.
Two, grams and kilograms are municipal units, and the decimal system is different in different regions. In the mainland, one kilogram is equal to 500 grams, and one kilogram is equal to.
10 Liang, while the kilogram in Hong Kong is 600g, which is equal to 16 Liang, so 600/ 16=37.5. The 1 2 used by jewelry stores in Hong Kong and Macao is equal to 37.5g, which is different from the 1 2 used in Chinese mainland now. The traditional 1 kg is equal to 16, hence the idiom "half a catty is eight liang".