由于经济效益（或硬性价值）具有定量性质，非经济效益（或软性价值）具有定性性质，因此物业管理服务产品价值是一个灰色值。

PMSP value is a Grey Value, because economy effectiveness (or hard value) is of quantitative character while non-economy achievements (or soft value) is of qualitative character.

youdao

在质量、光泽及柔软性方面，大豆丝绸都很有价值。

Soy Silk is valued for its quality, shine, and softness.

youdao

在质量、光泽及柔软性方面，大豆丝绸都很有价值。

Soy Silk is valued for its quality, shine, and softness.

youdao