用“cultured pearl”造句大全，cultured pearl造句
I sit on a wooden bench as a perky South African describes how they go about creating cultured pearls.
Pearl categories: natural pearls, cultured pearls, natural sea beads, sea pearls, freshwater pearls, South Sea pearls, black pearls;
But the cultured pearls have equal lustre and are just as beautiful.
"The biggest industry in Japan is not shipbuilding, producing cultured pearls, or manufacturing transistor radios or cameras. It is entertainment".
Natural pearls or cultured pearls.
Natural pearls are of higher value, but the cultured pearls have equal luster and are just as beautiful.
In conclusion, the freshwater cultured pearls produced by mussel Hyriopsis cumingii contain no calcites, and this is obviously different from characteristics of saltwater cultured pearls.
How is a cultured pearl produced?
It is not easy to distinguish cultured pearls from genuine pearls.
Irradiating experiments on freshwater and seawater cultured pearls using electron accelerator have been done, and lots of colour changed samples have been obtained in the experiments.
