tenuated measles virus vaccine(M-vac)
ethylene/vinyl acetate(e/vac) moulding and extrusion materials-part 1:designation system and basis for specifications
Abstr: Objective To summarize the nursing experience of vacuum-assisted closure(VAC) technology for deficiency of skin and soft tissue in "4·20" earthquake damage.
Brian finished the "H-vac" programme in 2007 at the top of his class, but he landed in an economy already beginning to teeter.
2007年，布赖恩以全班前几名的成绩完成了H -vac课程，但此时美国经济已开始步履蹒跚。
