钢琴型号:AT121F BBAQ 钢琴产地:中国天津 钢琴设计:美国设计师Delwin创新音源设计,音质达到最佳 音板级别:北美阿拉斯加5A级鱼鳞松实木音板 钢琴铁板:世界真空铸造铁板技术,四方形真空大钢板 键盘木质:鱼鳞松 钢琴黑键:优质防滑功能的黑檀琴键轻松演奏 钢琴琴弦:德国勒斯劳琴弦,长期维持精准音程 榔头木质:黑胡桃木(德国进...
本实用新型公开了一种旋液错流过滤器及系统,解决现有的旋流过滤器容易堵塞,需要定期清洗,造成对生产作业造成影响和维修维护人工成本增加的问题。本实用新型采用的技术方案是:旋液错流过滤器,包括筒体、过滤筒和进料管,筒体的上段呈圆柱状,筒体的下段呈圆台状,过滤筒安装于筒体内,呈圆柱状,过滤筒的上端安装于清液...
society for the study of amphibians and reptiles population structure of florida box turtles (terrapene carolina bauri) at the southernmost limit of their ... For taxa with dispersal limitations, such as freshwater turtles, an understanding of their habitat and spatial needs can elucidate their risk...
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