作者: P Harmanec 摘要: In recent years there is a general tendency to divide Be stars into different groups. Bidelman's (1976) division on supergiants, rapidly rotating single stars, interacting binaries, early type nebular variables and quasi (or young) planetary nebulae is often quoted. ...
申请(专利权)人: SANG-A FRONTEC CO., LTD.发明人:BI Cho,WH Seok,SM Chae 摘要: The present invention relates to a syringe. According to an embodiment of the present invention, the syringe includes: a cylinder member having a space for storing a fluid therein; a plunger member including ...