不知道

The navigator replied timidly,"No, what's it for?"

导航员胆怯地回答，"不知道，干什么用的？"

Tina: I don't know.

不知道。

I'm trying to give it up.

不知道，我不想干了

I don't know. She said that I'd have triplets...

不知道，她预言过我会生三胞胎

Troy: I don't know.

不知道，这可不是我想听的

Gordon : I don't know, I think she's twenty-two.

戈登： 不知道，但我想她是二十二岁。

I, um, I don't know.

我 不知道

I don't know. He's unconscious.

不知道，他昏迷了

Do not know, why, my all of a sudden was unexpectedly some to fear .

不知道，为什么，我忽然之间竟有些怕了。

It is unpredictable and its cause is not known.

其原因是变幻莫测，不知道。

According to our present broadcasting situation,the thesis proposes using new technology to update and reform the present HFC. It also suggests broadcasting using self-advantage and arranging EPON in order to win the supermarket.

论文从我国广电的现状出发，结合实际，积极倡导采用新技术更新、改造我国现有的HFC网络；倡导广电现阶段利用自身优势，部署EPON网络来赢取市场。

A new general kinetic equation was derived in which the effect of the removal of condensation water was taken into account completely, and was applied to the polyesterification kinetic study of AA/HPHP and AA/NPG. It was found that the reaction order of self-catalyzed polyesterification was not constant. For these polyesterifications, the reaction order was 2.5 at a low temperature, while 3.0 at a high temperature.

考虑缩合水的排除对反应体系的影响，用体积浓度单位推导出一个新的聚酯反应总包动力学方程，并应用到AA/HPHP和AA/NPG两个聚酯化反应的动力学研究中，研究发现，自催化聚酯反应的反应级数并不是固定值，对于AA/HPHP和AA/NPG两个聚酯化反应而言，低温时反应级数为2.5，高温时反应级数为3.0。