You must be certain of your facts collected in your investigation.

And how can you be certain of this?

你何以确定

China needs to be certain of having a nuclear second strike.

中国需明确无疑地拥有二次核打击能力。

So therefore, I can at least be certain of those.

因此，至少那些我是能够确认的。

I cannot be certain of what time I left the office.

我不能肯定我离开办公室的时间。

There is only one thing you can be certain of.

这是唯一你能够确定的事。

Fatigue Test Analysis for Super-Large Bellow Pipe Used in Pressure Pipe for The Three Gorges Project

三峡水利枢纽工程压力管道用超大型波纹管疲劳试验分析

Mechanical Problems of Bellow type Rubber Spring

曲囊式橡胶空气弹簧的一些力学问题

Bearing oil interface Analysis of contact stress between thief zone wellbore and bellow pipe

轴承与润滑油的接触面油气井井漏井壁与波纹管接触应力分析

The stress verification analysis on single layer Si shape thin wall bellow borne internal pressure

承受内压单层Ω形薄壁膨胀节的应力验证分析

He screamed, crashing back through the fence and bellowing with pain.

他尖叫着全速后退翻过围墙，痛苦得大声吼叫。

I wish my computer would stop going "beep" whenever I do something wrong.

我希望我的电脑在我犯错误时停止发出“哔哔”声。

When a connection is established between the two, a BEEP session is created.

当二者之间的连接建立以后，一个BEEP会话就被创建了。

In answer, you need to recognize that BEEP sits at a different level.

答案是，您需要认识到BEEP位于不同的层。

Please leave your name, phone number and a detailed message after the beep.

请在听到滴声后留下你的姓名电话号码和想留的信息。

More of that later; first let's look at the problem that BEEP solves.

稍后将会对此有更详细的讨论；让我们首先来看看BEEP所解决的问题。

Now you may record phone calls without beeps!

现在你可以记录电话，没有发出哔哔声！

At the same time participants needed to count the number of beeps for each block as a secondary task.

同时，实验参加者需要数每组练习中的所听到的嘟嘟声的数目，以作为第二项任务。

JASON WU, FASHION DESIGNER: Well, I was told that if I take over another floor, it would be named after me. So, you know I'm working on that in the next couple of years.

时尚设计师吴季刚：他们跟我说，如果我再租下另一层楼，这栋大楼就会以我来命名，我接下来几年会努力这么做的。

He was decorous in manner and conduct and though Bangkok Lane could be named after him, it seemed he would rather remain anonymous and let Bangkok Lane be a historical name.

他是端庄的方式和行为，尽管曼谷巷可以以他的名字命名，但似乎他宁愿保持匿名，让曼谷巷是一个历史性的名字。

Finally, it is suggested that the local disease should be named after the absorbed element content because it can reflect cause of the disease and definite treatment method, meanwhile doctors and patients can be all understanding.

最后建议地方病以摄入的元素多少来命名，因为它既能反映致病原因，又明确了治疗方法，医患皆知。