A new study found a simple and powerful way to control particles and form crystals: illuminating them. The research provides a simple and reversible method for forming crystals that can be used to develop a new generation of adaptable materials.

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(二)实际承运人,是指接受承运人委托或者转委托,实际履行本法第四十九条规定的全部或者部分承运人义务的人。

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