本文论述了电磁衬板的设计及开发应用效果.The paper expatiate the design and application effects of electromagnetic liner.所有木衬板或填充料必须任意是吠声.All wooden dunnage or packing material must be bark free.介绍了脱包隔热衬板及喷补内衬工艺在长钢的应用.Introduces the applicat...
华南雨蛙Hylasimplex-新亚种 ( 两栖纲: 雨蛙科 )A NEW SUBSPECIES OF HYLA SIMPLEX BOETTGER FROM CHINA ( AMPHIBIA: HYLIDAE )将它们放进四月五月, 这些池塘里鸣叫的雨蛙, 轻快的微风.Put in April and May, the hylas croaking in the ponds, the elastic air....