短語詞組短語cost overhead estimation model 成本費用估計模型cost benefit estimation 成本效益估計cost -estimation 成本估算satellite cost estimation 衛(wèi)星成本預測Cost estimation and prediction 成本核算預測warranty cost estimation 保證成本預測effort and cost estimation 成本估算Unit cost estimation table 單位成本測算表cost estimation technique 翻譯 返回 cost estimation