The notion of M-valuation systems is introduced in the category of commutative rings.With the aid of M-valuation systems, the M-valuations on a corn-mutative ring can be constructed.

• 摘要在交换环的范畴中，引进了所谓的M-赋值系统的概念，由此从环的内部给出了环上M-赋值的结构。