measures of protection

The intrinsic nature of economic law requires adopting its specific measures of protection for the vulnerable groups – in order to balance the interests of various groups, ensure their intergrowth and co-prosperity, and eventually benefit the whole of society.

经济法的本质属性要求对弱势群体采取其特有的保护措施，平衡各种群体利益，实现强势群体和弱势群体的共生与共荣，最终实现社会整体利益。

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Some factors including water content and submergence depth which is related to sucker rod and oil tube wear were analyzed. Measures of protection eccentric wear, mainly are lower sinker rod and centralizer, were designed and calculated.

对影响杆管偏磨的含水率、沉没度等因素进行了分析，对防偏磨措施加重杆和扶正器进行了设计与计算。

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This paper introduces the application of air exhauster to waste heat system of reheat furnace and some measures of protection available for production.

介绍了在加热炉余热系统利用引风机的几项防护措施，生产实践表明：这几项措施具有较好的实用性和可靠性。

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