time representation

• 时间表示

time representation的用法和样例：

例句

1. Speed is a derived concept defined mathematically in terms of length and time.
   速率是一个导出的概念，在数学上是用长度和时间表示的。
2. Think times represent the time that a user would ponder a Web page before going on to the next page.
   思考时间表示用户在继续下个网页之前思考网页的时间。