an estimator of sth
of后接被估计的对象,常见于统计语境。
The sample average is an unbiased estimator of the population mean.
样本均值是总体均值的无偏估计量。
估计者
先理解核心含义,再看它在真实句子里的用法。
估计者
a person who is expert at calculation
The sample average is an unbiased estimator of the population mean.
样本均值是总体均值的无偏估计量。
估算者,尤指估算成本的人。
A person who estimates, especially one who estimates costs
用于估计总体某个参数的随机样本函数。
A function of a random sample of a population used to estimate some parameter of the whole population
The construction company hired an estimator to calculate the total cost of the new bridge.
建筑公司聘请了一位估算师来计算新桥的总成本。
The insurance estimator inspected the damaged car and then wrote a detailed report.
保险估算师检查了受损的汽车,然后写了一份详细的报告。
We need to ask an estimator how much the kitchen renovation will cost.
我们需要问问估算师厨房翻新要花多少钱。
of后接被估计的对象,常见于统计语境。
The sample average is an unbiased estimator of the population mean.
样本均值是总体均值的无偏估计量。
for引出其适用的目标或参数,也可换成of,但for更强调用途。
This formula provides the estimator for the regression coefficient.
这个公式给出了回归系数的估计量。
指人的职业,意为“估价员/预算员”;在统计或工程语境中也可能指“估计器/估计量”。
He works as an estimator at a large engineering firm.
他在一家大型工程公司担任估价员。
Not this
I estimator the cost before buying.
Use this
I estimate the cost before buying.
estimator 是名词,表示“估计者”或“估计量”,不能用作动词。动词应为 estimate(估计),所以这里用原形 estimate。
Not this
The estimator for the repair is $500.
Use this
The estimate for the repair is $500.
表示“估计出来的金额/报价”要用名词 estimate,而 estimator 指“做估计的人或估算器”,不表示具体数额。
Not this
He is a well-known estimation in the industry.
Use this
He is a well-known estimator in the industry.
estimation 指“估计的过程或看法”,不能指人;指“估计者”时要用表示人的名词 estimator。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
成本估算员
The cost estimator calculated the total expenses for the new building.
成本估算员计算了新建筑的总开支。
建筑估算员
The construction estimator gave the client a detailed budget.
建筑估算员向客户提供了一份详细的预算。
经验丰富的估算员
An experienced estimator can quickly produce accurate figures.
经验丰富的估算员能迅速算出准确的数字。
担任估算员
She works as an estimator for a construction company.
她在一家建筑公司担任估算员。
Use estimator naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
estima-来自estimate(估计),-tor表示“者/器”;联想:一位评估师在估算价格,脑中闪现“估计者”的画面。
语域:neutral 常见场景:job titles and recruitment、project cost estimation 作“估计者”讲时,通常用于职业或商务语境,常出现在职位头衔和专业描述中;日常口语中较少单独使用。
这些词都以 -ator 结尾。translator、narrator、dictator 的重音都在 -teɪ- 上,形成真正押韵;calculator、generator、escalator 虽也以 -ator 结尾,但重音在前,不押韵。注意 escalator 和 estimator 拼写相近,但中间读音不同(-skə- 对比 -stɪ-)。
Dictionary facts from ECDICT, WIKTIONARY.