哈格尔施泰因和吴等人不是对现有设备进行改善，而是另起炉灶。
Hagelstein, Wu and others started from scratch rather than trying to improve the performance of existing devices.
工业工程是对人员、物料、设备、能源和信息所组成的集成系统，进行设计、改善和设置的一门学科。
The branch of engineering concerned with the design, improvement, and installation of integrated systems of people, material, information, equipment, and energy.
通过对纺纱四个工序的工艺、操作、设备等方面进行的改进，使棉纱质量得到了改善。
The yarn quality is optimized by the improvement of four spinning processes parameters, operation and equipments.
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