“earthwork balance”的概念、定义、翻译、参考文献-科学参考

单词	earthwork balance
释义	earthwork balance Encyclopedia 工学场地土方计算释 earthwork balance土方平衡在某一地域内挖方数量与填方数量相等或相抵。通常也包括挖方与填方数量接近平衡。在技术经济合理的前提下，有时也可不要求平衡。
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