国际钻井成本由工程服务费、材料费、监督和管理费、不可预见费等四部分组成。国际钻井成本与一些因素有关但不局限于此。
The international standard for calculating drilling costs includes but is not limited to engineering service commission, material expenses, supervision and management charges and unforeseen expenses.
运用逐步回归分析方法对小型电厂进行成本分析，得出影响电厂成本的主要因素是燃料费、辅助材料费及管理费。
This paper begins with an analysis of the cost of a small thermal power plant by using successive regression analysis.
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