The obsolescence principle of the literatures library reveals the characteristics of the library materials and its development.

Decrease in value of an asset due to obsolescence or use.

由于过时或使用而造成的财产价值的降低。

Study on the Theory of Document Obsolescence

文献老化理论研究

Total gross value of inventory at standard cost before reserves for excess and obsolescence.

所有的标准库存在过期报废之前的标准成本。

Analysis of the Present Situation of the Study on Literature Obsolescence

文献老化研究现状的分析

Publication Age of Cited Literature in Obsolescence Research

老化研究中的引文出版年龄处理

After five years, he decided to jack it all in.

五年后，他就决定完全放弃了。

These problems are all in your mind, you know.

你知道，这些问题都只是你的凭空想象而已。

It will require positive action by all in the industry.

这将需要业内全体同人和衷共济。

He locked these papers up in bottom drawer.

他把这些文件锁在底层抽屉里.

How did you know they were in my bottom drawer?

你怎么知道它在我最下面的抽屉?

He hasn't got a criminal record-he's clean as a whistle.

他没有前科，他很清白。

I want you to eat everything up and leave your plate as clean as a whistle.

我希望你把什么都吃光，让你的盘子干干净净的。

I got a tremendous kick out of trying to sweep every field clean as a whistle. Here I made a surprising and happy discovery: that there could be actual enjoyment in the exercise of thoroughness and responsibility, and that duty didn't have to be a drudge.

在将每片草地耙干净的过程中，我总会获得极大的成就感，并惊奇地发现：尽心而尽责地完成一件事会为你带来真正的快乐，而尽责也并不一定是做苦工。

I checked out my president and some of my vice-presidents, and they're as clean as a whistle.

我检验过了我的总裁和某些副总裁，他们是清白无辜的。

Jen is a bit of a neat freak. She keeps her desk clean as a whistle.

珍是一个酷爱整齐的人，她的办公桌总是打扫得极其干净整洁。

An Approach for Moving Marked Point on the Surface of 3D-Skull as Clean as a Whistle

一种三维颅骨表面标志点平滑移动的方法

You've really tidied it up here – it's as clean as a whistle!

你真的认真地做了扫除，这里看起来特别干净！

The little girl took a long bath so she would be as clean as a whistle.

这个小女孩子沐浴很长时间，他现在肯定很干净。

Wow! Your bedroom is clean as a whistle.

哇！你的房间这么干净！

I've never even been issued a speeding ticket – my driving licence1 is clean as a whistle.

例句我从来没收到过一张超速罚单，我的车本上一分都没扣，毫无污点。