他察觉到，比聚氨酯还软的聚合物，在静电吸引力的压缩下变形幅度更大，因此可以提供更大的机械应变。
He recognized that polymers softer than polyurethane would squash more under electrostatic attraction and thus would provide greater mechanical strains.
静电选矿是利用非均匀电场对介质颗粒的吸引力来分选矿粒的。
Electrostatic ore dressing is used to sort ore particles by means of the attraction of heterogeneous electric field for medium particles.
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