green sand

短语

[机] 湿砂

词形变化

green sands 复数

释义与例句

n.
  1. 1.

    An aggregate of sand, bentonite clay, pulverized coal, and water, used in making moulds for metal casting.

    可数 不可数

词汇关系

名词

上位词 1

sandstone

词源

Green in the sense of being used in a wet state (akin to green wood).

来源：wiktionary