ball clay

短语

[机] 球土

词形变化

ball clays 复数 ball clays

别名

ballclay

释义与例句

n.
  1. 1.

    A type of clay that commonly consists of 20-80% kaolinite, 10-25% mica, and 6-65% quartz.

    不可数

词源

Clay of this kind found in Dorset and Devon, England, used to be cut into balls that weighed 30 pounds.

来源：wiktionary