It is said that designing a powder unit operation device is difficult. Hence, many of the devices are being manufactured by trial and error. The lack of correlation or connection between the output of the unit operation and the physical properties and/or characteristics of powders is the anticipated reason for this trial and error process to be needed. To advance this process, many have attempted to make a connection between the particle properties and/or powder characteristics with the result of the operation. In this manuscript, some attempts to make the connection were introduced.

The oldest attempt was reported by the pioneer of powder technology. This original approach gives us many suggestions on how to best proceed. Thus, outlines of the pioneer's investigation will be introduced. Following the investigation, a concept of “Powder operational characteristics” will be explained. An example of the definition and measurement of the powder operational characteristics relating to the disruption of particle aggregate by air flow is introduced. Another example of the definition of powder operational characteristics obtained through “analysing the basic powder science in a practical and applicable way” is also introduced.

据说设计粉末单元操作装置是困难的。因此，许多设备是通过反复试验制造的。单元操作的输出与粉末的物理性质和/或特性之间缺乏相关性或联系，这是需要这种反复试验过程的预期原因。为了推进该过程，许多人试图通过操作结果在颗粒性质和/或粉末性质之间建立联系。在此手稿中，介绍了一些建立连接的尝试。

最早的尝试是粉末技术的先驱者报告的。这种原始方法为我们提供了有关如何最好地进行下去的许多建议。因此，将介绍先驱者调查的概况。在调查之后，将解释“粉末操作特性”的概念。介绍了与气流破坏颗粒聚集体有关的粉末操作特性的定义和测量的示例。还介绍了通过“以实用和适用的方式分析基础粉末科学”获得的粉末操作特性定义的另一个示例。