dschCOCA³¹⁵¹¹¹⁺⁴BNC¹⁴⁴⁶⁶⁴⁺³ 基本例句 =Doctor of Science Public Health 公共卫生理学博士 Firstly, HS- DSCH is described in detail. And then the key technologies of HSDPA and their study status are introduced. 文中首先对 HS- DSCH进行了详细描述，然后分别介绍了 HSDPA几项关键技术及其研究现状。 magsci