nitro carbo nitrate是什么意思

用法例句

The spherical CaCO_3 compound was synthesized in the presence of amphiphilic diblock copolymer polystyrene-b-poly(acrylic acid)(PS-b-PAA).

采用两亲嵌段共聚物聚丙烯酸-苯乙烯(PS-b-PAA)水溶液为介质合成了球形碳酸钙复合物,球形直径约3~4μm,由纳米级方解石微粒通过PS-b-PAA的有机键合紧密团聚而成。