Under different given temperature, optical rotations of the samples of cefazolin sodium of 3 different batch Numbers are measured. The values of the temperature coefficient K are calculated.
在不同的温度条件下，测出三个不同批号头孢唑林钠样品的旋光度，求得温度系数K的数值。
2
The present invention discloses a potassium sodium niobate-silver particulate composite material with an ultra-high dielectric coefficient and a preparation method thereof.
本发明公开了一种超高介电常数铌酸钠钾-银颗粒复合材料及制备方法。
3
The method of the invention improves the dielectric coefficient of the potassium sodium niobate system greatly, and is capable of meeting the business usage requirement of large-capacity capacitors.