Watch out for mud and other slippery surfaces like rocks.

小心泥土和其他光滑的表面，比如岩石。

Colgate-Palmolive, an American consumer-goods giant, has taken up an invention by a pair of experts in super-slippery surfaces to produce toothpaste tubes that promise to deliver every last scrap of their contents.

美国消费品巨头高露洁棕榄采纳了两位研究超光滑表面的专家的发明，的牙膏管承诺能把牙膏挤得一滴不剩。

And you won't get a smooth finish if the walls are dusty or greasy.

如果墙壁上有灰尘或油脂，你将无法获得光滑的表面。

And that's what gives that kind, the silky glossy finish.

这就是为什么会有这种，丝绸般光滑的表面。

These cells form a slick surface that helps the blood move without friction.

这些细胞形成光滑的表面，帮助血液无摩擦地流动。

" There was the idea that maybe it comes from the fact lava itself is basically a liquid, and a smooth surface can reflect light. Like the surface of water, for example."

“有人认为这可能是因为熔岩本身基本上是液体，光滑的表面可以反射光线。就像水面一样。”

You see, when light shines off an object, like your face and hits a super smooth surface, the rays of light can all bounce back at the same exact angle.

当光线从物体（例如你的脸）上照射到超光滑的表面时，所有光线都可以以相同的精确角度反射回来。

Have you seen the way they can run up walls? They can even hang on smooth surfaces. How do they do that? !

你见过它们爬墙的方法吗？它们甚至可以挂在光滑的表面上。它们是怎么做到的？！

The symmetrical shape is for equality, the slick surface for peace, and the undulating water motif in its lower body for the River Seine in Paris.

对称的形状象征着平等，光滑的表面象征着和平，下半身起伏的水面象征着巴黎的塞纳河。

Cautiously, Steve reached out and ran a hand across the shield's smooth surface. Then he gave it a tap, and it rang like a bell.

史蒂夫小心翼翼地伸手抚过盾牌光滑的表面，接着拍了它一下，盾牌发的响声如大钟般洪亮。

The team said it discovered the lizard had grown special scales that helped it climb more easily on smooth surfaces like walls and windows.

研究小组表示，他们发现这只蜥蜴长了特殊的鳞片，帮助它更容易在墙壁和窗户等光滑的表面攀爬。

You'd think if the wind were blowing across this sand, you'd just end up with a nice smooth surface, it'd just even everything out.

你会想，如果风吹过沙子，你最终会得到一个光滑的表面，它会把一切都抚平。

They're waiting for the chemists to design new, smooth surfaces with increased inherent adhesion for some of those copper wires.

他们在等化学家们为某些铜线设计增加了固有粘着力的新的、光滑的表面。

Previous techniques exist to solve this problem, but they take extremely long and are typically limited to flat surfaces.

之前也有技术能解决这个问题，但要花费相当长的时间，而且通常仅限于光滑的表面。

If the smooth surface absorbs the photons instead of bouncing them back, there's no reflection.

如果光滑的表面吸收光子，而不是将它们反弹回来，那就没有反射。

But not every smooth surface acts like a mirror.

但并不是每一个光滑的表面都像镜子一样。

Why is it that smooth surfaces can reflect images back at us?

为什么光滑的表面可以将图像反射回来呢？

There were little elegant side tables everywhere, their burnished surfaces covered with ornamental boxes.

随处可见精致的小边桌，光滑的表面上覆盖着装饰盒。

A smooth surface for sliding on slide.

一个光滑的表面用于在滑梯上滑行。

Finally he ran his hand over the smoothness, and nodded.

最后他用手摸了摸光滑的表面，点了点头。