Such a testing method is of practical sense in realization of molding sand testing and foundry production management and casting quality control.

该测试方法的应用对实现型砂性能检测、铸造生产管理和铸件质量控制具有现实意义。

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The federal government required her at one point to do sonar testing in shallow waters to make sure a 17th-century French ship wasn't buried below the sand, she said.

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