Change the flute structure to study the contrast of the floe field, provide the basis for the drill bit flute design. 改变排屑槽的分布方式，研究井底流场变化规律，为钻头排屑槽的设计提供依据。
But if the field changes or oscillates quickly enough, it produces a gravitational attraction, just like ordinary or dark matter. 不过，要是纯量场变化或是振荡得够快，它就会产生重力相吸效应，一如普通物质或是暗物质。
