Unlike the Earth, the sun does not have a solid surface.

太阳不像地球一样拥有固体表面。

With no solid surface, it's hard to measure how long a day is.

没有固体表面, 很难衡量每天有多长时间。

Smith developed a formula that can predict and build coatings for any solid surface.

史密斯构建了一个公式，它可以预测和建立任何固体表面的涂层。

Most of these satellites circle only a few hundred kilometres above the planet's solid surface.

大部分卫星绕行高度离地球地表仅几百公里。

This attaches to a rock or another solid surface where it continues to grow, becoming a polyp.

幼体水母附在岩石或者其他坚硬的表面上继续生长，成为水螅体。

After earth, Venus is the second largest terrestrial planet, meaning it has a solid rocky surface and an atmosphere.

地球之后，金星是第二大类地行星，这意味着它有着坚固的岩石表面和大气层。

It's made of gas. So you...would not have a solid surface on which to land and walk around.

是由气体组成的。所以你...不会有固体的地表站立和四处走动。

Hold it between the sun and a smooth, solid surface to see the progress of the moon across the sun.

把它放在太阳和一个光滑固体表面之间，可以看到月亮穿过太阳的全过程。

It's not just total open area, it is mostly a solid surface with some very small holes scattered throughout it.

它不仅仅是一个完全开放的区域，它主要是一个固体表面，上面散布着一些非常小的孔。

Wetting agents help a liquid spread out on a solid surface, and they come in handy for products like paint and cosmetics.

润湿剂有助于液体在固体表面上扩散，它们对油漆和化妆品等产品很有用。

" To rap" means to hit your hand usually against some solid surface.

。 “敲打” 是指通常用手敲打一些坚固的表面。

As air meets the wing's solid surface, a thin layer sticks to the wing.

当空气遇到机翼的固体表面时，一层薄薄的空气会粘在机翼上。

The four inner planets--Mercury, Venus, Earth, and Mars--are termed 'rocky' because of their solid surfaces.

四颗内行星——水星、金星、地球和火星——因其固体表面而被称为“岩石行星”。

And it was devastating because many early organisms were adapted to life on a solid surface.

这是毁灭性的，因为许多早期生物适应了固体表面的生活。

Kripa knew a plastic surface, a glass surface, any solid surface, for that matter, isn't truly smooth. It's covered with microscopic ridges and gaps.

克利潘知道就这点而言，塑料表面，玻璃表面，任何固体表面，都并非完全平滑。上面布满了微小的凸脊和缝隙。

They set a foam block in front of ANYmal, which appeared as a solid surface on its terrain map.

他们在 ANYmal 前面设置了一个泡沫块，在其地形图上显示为固体表面。

This is a dangerously parochial attitude, for the atmosphere is but one of two fluid systems circulating above Earth's solid surface.

这是一种危险的狭隘态度，因为大气只是在地球固体表面上方循环的两个流体系统之一。

Jacob Sagiv made a giant step forward in this field of research by discovering a way to transform a solid surface with an ultrathin layer of molecules.

而 Jacob Sagiv 发现了用分子超薄层改变固体表面，在该领域研究中向前迈出了一大步。

But if you take a look around, there's nothing here for you to actually land on, because the sun doesn't have any solid surface to speak of.

但如果你看看四周，其实没有任何东西可以让你着地，因为太阳根本没有任何固体表面。

But hedgehogs aren't the most graceful creatures, so I need to make sure he has a solid surface to run on too.

但刺猬并不是最优雅的生物，所以我需要确保他也有坚实的表面可以奔跑。