stop-watch

基本解释

The tree is organized by performance objects, denoted by folder icons, and performance counters, denoted by stop-watch icons.
该树是由文件夹图标所标识的性能对象和秒表图标标识的性能计数器组织成的。
He took to walking round with a stop-watch and a notepad breaking down manual tasks into a series of components that could be measured.
他习惯于带着个计时表和记事本巡逻工厂现场，并把手工动作分解成一系列可以被测量的组成部分。
For quantitative exploration, the simulations have measurement instruments available, such as a ruler, stop-watch, voltmeter and thermometer.
在定量探测上，模拟有测量工具，例如尺子、码表、伏特计和温度计。

The head of a string of pigs appeared, snout-up, over the ditch, and he had to screech to a stop and watch the rear of the last pig disappear shaking into the ditch on the other side.
这时候出现了一群猪，仰着鼻子走过水渠，他只好用一个急刹车,目送着最后一只猪大摇大摆地跨过水沟,消失在另一端。
耶鲁公开课 - 1945年后的美国小说课程节选

Detailing the number of tweets, calls on Skype, music-streamers on Pandora, and other activities on the web, the folks at GO-Globe.com packaged a mountain of information in digestible rainbow-colored spokes extending from a classic stop-watch image, underscoring that all of this happens in just 60 seconds.
FORBES: How Much Information Zips Around the Web in 60 Seconds?
The AMC-Hamas lawyer said his goal is to force the FBI to stop maintaining terrorist watch lists.
CENTERFORSECURITYPOLICY: hamasmembers
Increasingly, watch-lists are used to restrict access to training and education, and to stop people buying property, guns, chemicals and other things that can be made into weapons.
ECONOMIST: Computing: What's in a name?

A stopwatch is a watch with buttons which you press at the beginning and end of an event, so that you can measure exactly how long it takes.