银粒是一种黑色有光泽的面心立方结构的金属，分子式是Ag。
以银粒子为抗菌剂制备聚氨酯抗菌涂料。
Polyurethane antibacterial coatings were prepared with silver particle antibacterial agent.
他们为达到这一目的选择的工具是微小的银粒子。
Their chosen tools for this task are tiny particles of silver.
例如，五纳米的金粒子呈现红色，银粒子呈黄色。
Five-nanometre gold particles, for example, look red, and silver ones look yellow.
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