The activists entered a highly restricted area known as the Nazca lines. Matt McGrath reports.

这些活动子进入名为纳斯卡线条的限制区。马特·麦格拉思报道。

That snack touching the outside of your exposed dentin has highly concentrated solutes in the form of sugar molecules.

那些接触到你暴露的牙本质外部的零食含有集中的糖子形式的溶质。

And different critters have different highly ordered molecules or fibers that create a reflective surface.

不同的生物有不同的有序的子或纤维，它们会产生反射表面。

They tap into sources of highly ordered energy to power molecular machines.

它们从有序的能量源中获取能量，以驱动子机器的运转。

Benzene is a  smelly and highly flammable hydrocarbon molecule.

苯种有气味且易燃的碳氢化合物子。

So flying at this altitude, the plane runs into a third of the air molecules it would closer to the ground.

因此，在此飞行时，飞机遇到的空气子数量仅为靠近地面时的三。

At a height of about 25 kilometers on average is a layer of ozone, a molecule of oxygen that's good at absorbing solar ultraviolet light.

25千米左右有层臭氧，这种擅长吸收太阳紫外线的氧子。

Suspected militants have killed 11 civilians, including five migrant workers, in Kashmir since early October, this despite a widespread security crackdown in the heavily militarized region.

自10月初以来，疑似极端子已在克什米尔地区杀害了11名平民，其中包括5名移民工人，尽管这个军事化的地区已进行了广泛的安全镇压。

But what it really means is they're going to free up all of the excess highly reactive oxygen they have inside the cell.

其实它的意思指，它们会释放细胞内所有多余的、活性的氧子。

At sea level, air molecules are so thick that one molecule can move only the tiniest distance, about three-millionths of an inch, to be precise-before banging into another.

在海平面，空气子密很大，个子只要运动极小的距离，说得确切点，大约百万厘米就会砰地撞上另个子。

Solomon says that hydrochloric acid latches onto the surface of the smoke particles and reacts with other molecules to produce molecular chlorine, which is broken down in sunlight to highly reactive 'ozone-eating' chlorine ions.

所罗门表示，盐酸附着在烟雾粒子表面，并与其他子反应，生成子氯，该氯在阳光下解为反应性的“臭氧消耗”氯离子。

Because it is highly reactive, it scarcely exists on Earth in its free state and is instead bound up in molecules with other elements, chiefly carbon, in natural gas and other hydrocarbons, and oxygen in water.

由于其活性，氢在地球上几乎不以自由状态存在，而与其他元素，主要碳（如天然气和其他碳氢化合物中）和氧（如水中）结合成子形式。

Drag is not a perfect answer to maneuvering in space above an altitude of about 650 kilometers air molecules are too rare for the technique to be feasible, so it works only in the lowest of lower orbits.

空气阻力并不在于约650公里的太空中操控卫星的理想方法，在这个上空气子过于稀薄，使得该技术不可行，因此它只能在最低的低地球轨道中使用。