BTG, for instance, produces small glass microspheres that deliver radiation directly to liver tumours.

例如，BTG生产小玻，可将辐射直接传送到肝脏肿瘤。

We could help the young Arctic ice to reflect more sunlight by covering it with small, shiny silica microspheres.

我们可以用小而闪亮的二氧化硅覆盖在新生的冰上，以反射更多太阳光。

It is called hollow glass microspheres, you can think of it as a kind of floating, very foot-friendly sand, so it's teeny, teeny spheres with a very thin silica glass shell around a gas core.

它叫中空玻，你可以把它想象成一种漂浮的、非常容易踩踏的沙子，因此它是由非常薄的二氧化硅玻外壳气体核心制造的小。

And they use these microspheres to develop drug delivery systems for all kinds of drugs, one of them—some of them can treat cancer. One of them has actually been used in over five million schizophrenic patients.

他们用这些体来开发各种药物的药物输送系统，其中一种——其中一些种类可以治疗癌症。其中一种实际上已经被用于治疗超过五百万的精神分裂症患者。