土地开发强度的变化。
并且建立起基于道路交通因素的开发强度临界控制的计算公式。
A formula of development intensity critical control based on road traffic factors is set.
介绍了高强度钢板的开发进程和在汽车工业中的应用情况。
Development progress of high strength steel sheet and its application in automobile industry are introduced.
结果表明，研制开发出的铌钛微合金化if钢具有高的屈服强度和优良的成形性能。
The results show that the steel has high yield strength and quality forming property.
结果表明，研制开发出的铌钛微合金化if钢具有高的屈服强度和优良的成形性能。
The results show that the steel has high yield strength and quality forming property.
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