克拉黄金(一般混入铜)有一定的延展性，但是比纯金的延展性低一些。

The carat gold alloys generally have good ductility although less than that of pure gold.

youdao

克拉黄金(一般混入铜)有一定的延展性，但是比纯金的延展性低一些。

The carat gold alloys generally have good ductility although less than that of pure gold.

youdao