Along with the expansion of its application scope, the study on the theory keeps consummating.
随着应用范围的不断扩展，收益管理的理论研究也在不断完善之中。
The production process of gray iron with trace antimony addition and its application scope was introduced.
介绍了加微量锑灰铸铁的生产工艺和适用场合。
Basic characters of reinforcing bar rusty retardant agent, its application scope and method were introduced.
介绍了钢筋阻锈剂的基本性能、使用范围和方法。
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