讨论了模糊度量空间中在R -弱可换条件下的公共不动点存在性问题，并将此结果推广到模糊2 -度量空间及模糊3 -度量空间。
In this paper, we obtain some common fixed point theorems under the condition of R-weakly commuting in fuzzy metric Spaces and then extend these results to fuzzy 2 and 3-metric Spaces.
说明在一定条件下，旋转流可减弱换热强度。
It shows that the heat transfer can be weakened by fluid rotation under some conditions.
同时，通过采用可倾覆使用的绕线机构，解决了天线在不同仰角条件下换馈机构旋转时带来的电缆缠绕问题。
At the same time, the cable wrap problem caused by rotation of feed switching mechanism at different elevations is solved by using tilting cable wrap mechanism.
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