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grav·i·ton AHD[grăvʹĭ-tŏn'] D.J.[ˈgrævɪˌtɒn]K.K.[ˈgrævɪˌtɑn]n.Physics（名词）【物理学】- A hypothetical particle postulated to be the quantum of gravitational interaction and presumed to have an indefinitely long lifetime, zero electric charge, and zero rest mass. See table at subatomic particle 引力微子：一种假想粒子，被假定为引力相互作用的量子，并被推测为具有无限长寿命、零电荷和零静止质量 参见 subatomic particle
- gravit(ation) gravit(ation)
- -on 1-on1
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