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。

" 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。

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。

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。

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。

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。

But these maps aren't perfect: the depth sensor interprets soft, unstable surfaces—such as snow— as solid surfaces that can't be walked on.

但这些地图并不完美：深度传感器将柔软、不稳定的表面（例如雪）解释为无法行走的固体表面。

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。

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。