Here's why: Quartz crystals form within a cooling blob of molten granite rock, or magma, deep under Earth's surface.

石英晶体形成于地球表面深处，一团冷却的熔融花岗岩岩石或岩浆中。

In a 2017, study in Idaho, radar footage captured ice crystals forming in the same pattern the cloud-seeding airplane was flown in.

在2017年爱达荷州的一项研究中，雷达镜头捕捉到冰晶形成的模式与人工降雨飞机飞行的模式相同。

While it can absorb heat in its crystal form, it can release heat in its non-crystal form, therefore regulating the wearer's temperature.

聚合物在晶体形态时可以吸收热量，而处于非晶体形态时，又能够释放热量，因此可以调节穿戴者的体温。

In sickle cell, disease protein crystals formed inside the cells changing them to a crescent-shape, clogging vessels and causing pain and organ damage.

在镰状细胞中，细胞内形成的病变蛋白质晶体会使细胞变成新月形，会堵塞血管，从而造成疼痛和器官损伤。

It happens when uric acid crystals form in the joints, causing them to swell.

当关节中形成尿酸结晶并导致关节肿胀时， 就会发生这种情况。

However, when ice crystals form, they will have definite positions and will be lined up in some direction.

但是，当冰晶形成时，它们会有确定的位置，并且会在某个方向上排成一行。

Um, and basically you dissolve lots of salt into the water and watch the crystals form, so it basically teaches the kids about growing crystals.

大体上，你在水中溶解很多盐，看着它凝结成晶体状，这是教孩子晶体的形成。

As these crystals form, the impurities are forced to line up along the axes of the crystal's structure, so the pieces of mineral end up parallel to each other.

正如这些晶体的组成，杂质原子沿着晶体结构中的晶轴排成一列，所以这些片晶相互平行排列。

The resulting calcium hydroxide reacts with carbon dioxide in the air, starting a process called autogenous healing, where microscopic calcium carbonate crystals form and gradually fill the gap.

生成的氢氧化钙与空气中的二氧化碳发生反应，开始一个称为自生愈合的过程，在此过程中会形成微小的碳酸钙晶体并逐渐填充间隙。

A better understanding of how crystals form, and what sorts are possible, might also save scientists curious to test how the 2.2m new materials behave from the tedious task of synthesising each one of them by hand.

更好地了解晶体如何形成，以及可能形成的种类，也可以使科学家们从手工合成每一种新材料的繁琐任务中解脱出来，去测试220万种新材料的性能。