polytypism

THE POLYTYPISM OF SILICON CARBIDE FeNi-CEMENTED CARBIDE New Techniques of Sillicon Pressure Sensor

硅压力传感器的新技术

Study on the Polytypism of Peroxydases in Popcorn of Sichuan Province

四川爆玉米过氧化物酶的多型现象研究

Streptococcus suis infection is a kind of polytypism plague caused by Streptococcus suis which is now one of the most important factor on pig husbandry loss .

猪的链球菌病是由多种溶血性链球菌引起的一种多型性疫病，已成为现代养猪业生产经济损失重要的疫病之一。