In contrast, the works dedicated to improving the energetic performance of EEs are significantly fewer, due to the extremely significant need to perform blasting repeatedly in a variety of experimental configurations, while ensuring the safety of both personnel and the utilised instruments.
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The sentences
It should be noted, however, that the comparison between the two types of microspheres was conducted based on the density of the sensitised EEs rather than on their weight share in the formulation and the nearly twofold difference in microsphere diameters is likely a highly significant factor.