1
a [type] locator
The plumber used a pipe locator to find the blockage.
水管工用管道定位器找到了堵塞处。
土地勘界员；地界划定人
先理解核心含义，再看它在真实句子里的用法。
土地勘界员；地界划定人
a person who fixes the boundaries of land claims
The plumber used a pipe locator to find the blockage.
水管工用管道定位器找到了堵塞处。
此处指人，不是定位设备
One who, or that which, locates.
The unique alphanumeric reference given to each travel booking.
The locator walked across the field to mark the new boundary.
这位土地勘界员穿过田地，标出新的边界。
They hired a locator before registering the land claim.
他们登记土地所有权之前，雇了一名土地勘界员。
The two locators compared their notes and fixed the fence line.
这两位土地勘界员核对了记录，确定了围栏的界线。
The plumber used a pipe locator to find the blockage.
水管工用管道定位器找到了堵塞处。
This device is a locator for lost keys.
这个设备是用来寻找丢失钥匙的定位器。
在历史或法律语境中，locator 也指划定地界的人。
In the Old West, a locator of land claims had to survey the boundary.
在旧西部，土地勘界员必须勘测地界。
Not this
Please tell me the locator of the restaurant.
Use this
Please tell me the location of the restaurant.
locator 指“定位器/定位者”或“土地勘界员”，不表示“地点、位置”；表达“位置”应用名词 location。此句混淆了 locator 与 location，属于词义误用。
Not this
I can't locator my keys.
Use this
I can't locate my keys.
locator 是名词，不能作谓语动词；表示“找到/确定……的位置”要用动词 locate。情态动词 can 后接动词原形，故用 locate。
Not this
He works as locator for the survey team.
Use this
He works as a locator for the survey team.
locator 是可数名词，单数形式用于表示职业身份时，前面须加不定冠词 a/an。汉语没有冠词，学习者容易漏掉，所以要说 a locator。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
GPS定位器
The hiker used a GPS locator to find the trail.
这位徒步旅行者用GPS定位器找到了小径。
车辆定位器
The company installs vehicle locators in all its delivery trucks.
这家公司在所有送货卡车上安装了车辆定位器。
故障定位器
The technician used a fault locator to identify the break in the underground cable.
技术员用故障定位器找出了地下电缆的断点。
定位应用程序
The locator app shows exactly where your friends are.
这款定位应用会准确地显示你朋友的位置。
Use locator naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
locator 拆成 locate（定位）+ -or（者/物）：帮人定位的人或工具；老用法里也指划定地界的人。
语域：formal 常见场景：土地勘界、地权登记、法律/历史文献 此义项指“划定土地边界的人”，多用于法律、历史或产权语境，如早期土地授予或采矿权申请；日常口语中较少见，通常出现在正式文书里。
该义项指划定土地权益界线的人；复数形式为 locators。
Dictionary facts from ECDICT, WIKTIONARY.