To me, unit tests are fast running tests that typically test individual classes that don't have heavy external dependencies like databases.

对我来说，单元测试是快速运行的 测试，通常测试没有大的外部依赖项（如数据库）的单独的类。

youdao

Creating and running unit tests with WicketTester is fast and simple, as shown below.

使用WicketTester创建、运行单元测试非常快速、简单，如下所示。

youdao

Jug kettles are fast and convenient, but their fuel - electricity from the national grid - produces almost three times more greenhouse gas for each unit of heat than burning gas in the home does.

电热水壶烧水快而且方便，不过它们的燃料——来自全国电网的电——产生每单位热量所排放的温室气体是自己在家烧煤气的3倍。

youdao

This year TRW will derive nearly two thirds of its revenues from auto parts, where prices are falling as fast as unit volumes are rising.

FORBES: Swords into Dow shares

"We don't know who they were, we only know they were from St Austell and they called themselves a 'fast response unit' but they weren't employed by the council, " he said.

BBC: Cornwall clean-up after 100 properties flooded

How fast could you rearrange a business unit, in order to meet new priorities?

FORBES: Agile Adaptation: Firm Administration For Professional Services