To make an airplane contrail, you need water and some kind of microscopicparticle for the water to condense around.
创造一条飞机的轨迹,你需要一些水和一种能让水在它周围压缩和微小粒子。
2
The key is using a microscopicparticle that zeroes in on blood vessels around the tumor to deliver low doses of the drug in a more concentrated way.
其中的关键是用微粒瞄准肿瘤周围的血管,低剂量的药物以较为集中地方式给药。
3
This paper discusses the fundamental problem of the explanation on quantum mechanics-is microscopicparticle something real or something existing objectively?