释义 |
protoplanetaryCOCA⁶¹³⁴⁷BNC¹⁷³⁹⁹⁵⁺²iWeb⁴⁹⁷⁵³ 基本例句 adj.原始行星的¹⁰⁰ Artist's impression of a baby star still surrounded by a protoplanetary disc in which planets are forming. 这是一张在行星形成过程初期,被行星盘围绕的婴儿恒星的艺术幻想图。 www.astronomy.com.cn Dr Eisner argues that the separation of material in the protoplanetary disc indicates that something— possibly the star's magnetic field—is holding some forms of matter away from the surface. Eisner博士认为,原生行星盘里的物质分离表明某种物质——可能是恒星磁场——抓住某种物质离开恒星表面。 ecocn |