介质运动规律
motional behavior of grinding elements
运动介质
air-to-water sound transmission
moving medium
高能质子-质子反应
high energy proton-proton collision
星内质子-质子链反应
proton-proton chain in stars
质子-质子链反应
proton-proton chain reaction
质子-质子链式反应
proton proton chain reaction
中子-质子质量差
neutron proton mass difference
neutron-proton mass difference
difference
neutron-proton mass
表面示踪粒子运动时间
movement time of tracer-particle in free-surface