The luminescent principle of EL panel is that electrons move at highs peed in luminescent layer to activate atoms of luminescent material, which make energy transition to emit light.

电致发光屏发光机理是在电场的作用下电子在发光层内高速运动， 激活发光材料原子使其发生能级跃迁而发光。

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It is primarily considered that, the contact barrier between electrode and material and the space charges inside polymers greatly affect their el characteristics.

认为电极与材料的接触势垒和材料内部空间电荷影响着材料的电致发光特性。

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El lenguaje es el material de la escritura y encierra una gran complejidad que a veces no es bien entendida.

UNESCO: Situaciones de postconflicto y postdesastre

Pero El Salvador asegura que nuevo material hallado en Chicago, EE.

BBC: El Salvador reabre disputa con Honduras

Fortunately, surviving collections of objects curated at the Museo del Oro in Bogota and British Museum in London can provide an insight into these different perspectives on material value and human perception and most importantly tell the true story behind the myths of El Dorado.

BBC: El Dorado: The truth behind the myth