Law of Library Science and the Labor-saving Principle, and connecting with the reality, discusses on the directive function of No.
简述了图书馆学第四定律和省力法则的内涵，联系实际，讨论了目前网络环境下第四定律对图书馆工作的指导意义。
It is saving cost that creates the wealth ultimately. Smith's principle that division of labor creates wealth is only one way to save cost.
节约成本是创造财富的根本原因，斯密的分工创造财富的原理仅是节约成本的方式。
It is saving cost that creates the wealth ultimately. Smith's principle that division of labor creates wealth is only one way to save cost.
节约成本是创造财富的根本原因，斯密的分工创造财富的原理仅是节约成本的方式。
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