Competitive product position in the market, the marketability of products and product lines the width and depth.
竞争企业产品在市场上的地位；产品的适销性；以及产品系列的宽度与深度。
The essence of Hicks's theory of economic history is the formation and evolution of market, which, from a different perspective, means the extension of resource fluidity in both width and depth.
从另一个角度来看，这也意味着资源流动性在广度、深度层面上的不断扩展。
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