用“astronomy”造句大全，astronomy造句
Jointheastronomyclub.Withoutthisunderstanding,astronomyisverydifficult.Doyouknowanythingaboutastronomy?Inastronomy,inopticalastronomywecannotmeasuretheperiodorthefrequencyofopticallight.THEhereandnowa...
用“physics and astronomy”造句大全，physics and astronomy造句
Editor'snote:MegUrryistheIsraelMunsonprofessorofphysicsandastronomyandchairoftheDepartmentofphysicsatYaleUniversity.Intheautumnof1961,AleksandrSolzhenitsynwasa43-year-oldhighschoolteacherofphysicsand...