BTG, for instance, produces small glass microspheres that deliver radiation directly to liver tumours.
例如,BTG生产小玻璃微球,可将辐射直接传送到肝脏肿瘤。
地球实验室
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.
Glass microspheres are microscopic spheres of glass manufactured for a wide variety of uses in research, medicine, consumer goods and various industries. Glass microspheres are usually between 1 and 1000 micrometers in diameter, although the sizes can range from 100 nanometers to 5 millimeters in diameter. Hollow glass microspheres, sometimes termed microballoons, or glass bubbles have diameters ranging from 10 to 300 micrometers.