estimator
estimator — 名詞
1. a person whose job is to calculate the likely cost or value of something before
估價員
估算成本或價值的專業人員
a person whose job is to calculate the likely cost or value of something before a project or repair begins
The construction estimator told the school board that the gym would cost at least two million dollars.
建築估價員告訴學校董事會，體育館的造價至少需要兩百萬美元。
compound noun: construction estimator
Andrew hired an estimator to calculate the cost of renovating the old farmhouse.
Andrew 聘請了一位估價員來計算翻修那棟舊農舍的費用。
Marta works as a kitchen estimator, preparing price lists for cabinets and countertops.
Marta 是一名廚房估價員，負責準備櫥櫃和檯面的詳細價格清單。
After the fire damaged the warehouse, the insurance estimator visited the site to assess the loss.
倉庫遭大火損壞後，保險公司的估價員到現場評估損失。
Zayd trained as a building estimator and now prepares cost reports for infrastructure projects.
Zayd 受過建築估價員的訓練，現在為基礎建設項目準備成本報告。
用法筆記
This sense is commonly used in compound nouns that specify the field, such as construction estimator, cost estimator, or insurance estimator.
常見錯誤
2. a calculation of the expected cost, size, or number of something, especially one
估算值
對成本或數量的粗略計算
a calculation of the expected cost, size, or number of something, especially one that is not intended to be exact
In her statistics course, Lucía learned that the sample mean is a reliable estimator of the population average.
在統計學課程中，Lucía 學到樣本平均數是母體平均數的一個可靠估算值。
statistics term: reliable estimator
The cost estimator for the building project showed a total of nearly two million dollars.
該建築項目的成本估算值顯示總額將近兩百萬美元。
An estimator of the crowd size was made using aerial photographs and counting software.
利用空拍照片和計數軟體，得出了對群眾人數的估算值。
The final estimator for the bridge was revised upward after the price of steel rose sharply.
由於鋼材價格大幅上漲，這座橋樑的最終成本估算值被調高了。
- estimate
more common in everyday language; estimator is more formal or technical
- approximation
emphasises that the figure is not exact
- projection
focuses on a future figure based on current data or trends
用法筆記
More common in technical, business, or statistical contexts than in everyday speech. In statistics, an estimator is a specific rule or method for calculating an estimate from data.