There are 3 types of estimates according to the accuracy of estimate: order-of-magnitude estimate, budget estimate and definitiveestimate.
按照估算的精确度范围可以将估算分为3大类，量级估算、预算估算和确定性估算。
2
The detailed estimate or definitiveestimate is made when the scope of work is clearly defined and the detailed design is in progress so that the essential features of the facility are identifiable.
详细估算或者称为明确估价是在工程范围基本明确、详细设计正在进行、项目的基本特征已经确定时做出的。
3
Although the temperature estimate is not yet definitive, the hotter the surface temperature makes for a hotter interior, strengthening the chances of pools of liquid water inside the moon.