英语词汇“BY Dra star”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	BY Dra star
释义	BY Dra star 天龙BY型星；光谱型为K和M的带发射线的矮星；有准周期光变；光变幅小于 0.5目视星等；周期通常从短于1天至几天；光变曲线的形状在变化；表面有黑子活动。
随便看	principles of harmony of objective Principles of Heating Processing principles of heredity Principles of Historical Materialism principles of holography principles of human geography principles of human relationship Principles of Hydraulic Machinery principles of iconicity principles of imputation principles of inertial fusion principles of informationentropy principles of infrared ray heating principles of instruction principles of instrumental analysis principles of integrity principles of internationalism and patriotism principles of investment principles of joining garment parts principles of journalism principles of justice Principles of key principles of land resources planning principles of language planning principles of law