求翻译：中国的液压市场很大，用户对产品的要求各异，各种高品质、高性能的液压元件市场需求量很大。而大部分国内企业所能提供的产品，无论在档次上还是种类上，都还远远不能满足这些需求。因此，在众多低档产品压价竞争的同时，不得不让出一块巨大的市场给国外产品。这表明，在市场丰富多样的需求面前，国内液压行业现有产品体系的结构性过剩与结构性短缺两个矛盾同时并存；也表明我们在产品的多样性、层次分布性和市场适应性等方面亟待调整和改善。企业在产品更新、装备改造等方面的投入能力不足。是什么意思？

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China's hydraulic is a big user of the product, the requirements may vary, the high-quality, high-performance hydraulic component market demand is very high. Most of the domestic enterprises that are able to provide the product, whether in grades or types, is still far from being able meet these nee

Hydraulic market in China is very large, users on different product requirements, a variety of high-quality, high-performance hydraulic components is in great demand in the market. And most of the domestic enterprises can provide the product, both in grade is also kind, are far from enough to meet t