| 释义 |
gravel pits
释义
砾石坑
例句
1·The gravel pits have been landscaped and planted to make them attractive to wildfowl.
这些乱石坑已经被美化，种了树来吸引野生鸟类。
《柯林斯英汉双解大词典》
2·Widely used in gravel pits , mining, building materials, transportation, chemical industry, water utilities, concrete mixing stations and other industries in the washing of material.
广泛用于砂石场、矿山、建材、交通、化工、水利水电、混凝土搅拌站等行业中对物料的洗选。
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