According to many years' working experience of the author, this paper analyzes the composition of engineering survey marginal cost, and gives opinions on the malignant competition in current engineering survey market, calls on related management department to strengthen self-discipline management.%本文根据笔者多年的工作经验，对项目工程勘察边际成本的构成进行分析，对当前工程勘察市场的恶性竞争发表看法，呼吁相关管理部门加强行业自律管理。
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