名词
中文翻译：绿色沙芯
同义词：
['green sand', 'green sand core例句：1. The engineer used a green sand core to reinforce the foundation of the building.（工程师使用绿色沙芯来加固建筑物的基础。）']
例句：
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1. The engineer used a green sand core to reinforce the foundation of the building.
工程师使用绿色沙芯来加固建筑物的基础。
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2.The construction crew was working on a green sand core for several hours.
施工队正在用绿色沙芯工作了几个小时。
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3.The green sand core was carefully extracted from the drilling site.
从钻探现场小心地提取了绿色沙芯。