| 单词 | protoplanet | 
| 释义 | protoplanet听听怎么读 
                            英 [pr??t?'pl?n?t]
                         
                            美 [pro?t?'pl?n?t]
                         是什么意思 原行星; 英英释义Protoplanet
 以上来源于:Wikipedia 学习怎么用 双语例句用作名词(n.) 
 权威例句ProtoplanetProtoplanetProtoplanetProtoplanet Migration by Nebula Tides ☆Giant gaseous protoplanet formation?Formation of Protoplanet Systems and Diversity of Planetary SystemsThe Formation of Protoplanet Systems and the Diversity of Planetary SystemsScattering of Planetesimals by a Protoplanet: Slowing Down of Runaway GrowthEvolution of the Solar Nebula. IV. Giant Gaseous Protoplanet FormationGas Giant Protoplanet Formation: Disk Instability Models with Detailed Thermodynamics and Varied Artificial ViscosityReversing type II migration: resonance trapping of a lighter giant protoplanetA vaporization model for iron/silicate fractionation in the Mercury protoplanetGlobal hydromagnetic simulations of a planet embedded in a dead zone: gap opening, gas accretion and formation of a protoplanetary jet | 
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