求翻译：由上图对比可知，在不同外场作用下熔体内外分布情况有所差别，在组合电磁场作用下的Al3Ti颗粒形貌与无外场和单一磁场情况下相比，颗粒尺寸较小，约为1-3um，与图（a）、（b）相比增强颗粒弥散均匀分布于熔体内，Al3Ti颗粒的尖角发生了更为明显的钝化，这对提高复合材料的力学性能十分有利。是什么意思？

The figure contrast shows that the melt inside and outside the distribution of the different external field is different particle morphology in the combined electromagnetic field al3ti compared with the case of no external field and a single magnetic field, particle size is smaller, about 1 - 3um, F

From the figure, in a different role within and outside the melt distribution vary, the electromagnetic fields in the combination of the 3 Al Ti particles with no outside appearance, and a single magnetic field than the particle size is small, it is approximately 1 - 3 um, and figure (a), (b) increa

May know by on chart contrast, inside and outside the melt the distribution situation has a difference under the different outfield function, with does not have in the outfield and the sole magnetic field situation under the combination electromagnetic field function Al3Ti pellet appearance compares

By Shang figure contrast known, in different outfield role Xia melt body both within and outside the distribution situation has difference, in combination electric magnetic field role Xia of Al3Ti particles morphology and no outfield and single magnetic field situation Xia compared to, particles siz

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