Development of such distributed feedback heterostructure lasers requires crystal growth on corrugated layers.研制这种分布反馈双异质结构激光器要求在皱折层上生长出单晶层.We produce metal plates and corrugated sheets in different thicknesses.我们生产不同厚度的金...
Industrial orientation: Oil refining fine chemical industry engineering plastics synthetic rubber.产业定位炼油、乙烯、精细化工、工程塑料、合成橡胶.Steam condensate was produced by steam exchanging heat during oil refining.蒸汽凝结水是在石油炼制生产过程中蒸汽经换热后...
She travels con-stantly, moving among her several residences around the world.她经常旅行，穿梭于她在世界各地的多处住所。Mindful of the needs of its students, Cardiff has invested heavily in providing new and improved residences.考虑到学生的需要，加的夫大...