The RSpec descriptions go in a describe method, and you pass in the name of the class under test and a code block that has the actual spec.

describe方法提供了RSpec描述，您将传入测试类的名称和包含实际规范的代码块。

youdao

So the ANSI lumen spec, when measured under these conditions, does not accurately reflect the actual brightness the user will get in normal operation.

所以在这些条件下测得的ANSI流明参数并不能精确的反应用户在正常使用环境下获得的实际亮度。

youdao

And now that the boxes are apparently about to launch, we've been gifted with what look to be the actual spec sheets for two new models, the D620 and D820 (left to right, above).

ENGADGET: Dell Latitude D620, D820 get specs