protoplanet

protoplanet读音音标

英 [prəʊtə\'plænɪt]

美 [proʊtə\'plænɪt]

protoplanet意思解释

n.

原行星；

英英释义

Protoplanets are large planetary embryos that originate within protoplanetary discs and have undergone internal melting to produce differentiated interiors. They are believed to form out of kilometer-sized planetesimals that attract each other gravitationally and collide.

双语例句

用作名词(n.)In the meantime the protoplanet cores were proceeding to consolidate.在此期间，原行星的核开始凝成。