Finding even one requires a painstaking search of Stardust's particletrap using a microscope.
哪怕只有一个发现，也需陷入使用显微镜对星团颗粒的辛勤研究。
2
A particle in cell code has been developed to simulate the steady state of electron plasmas in an electron beam Penning trap and to study its scaling law.
应用粒子模拟方法研究了电子束潘宁阱中的非中性等离子体的稳定状态及其定标关系。
3
To solve the problem that particle swarm optimization algorithm is apt to trap in local optimum, a novel cooperative particle swarm optimization algorithm is proposed.