铁氧体

Applications in the latching devices require the microwave ferrites with better temperature stability and hysteresis properties.

在闭锁式器件的应用中对微波铁氧体材料提出了有较好的温度稳定性和磁滞性能的要求。

And manganic manganous oxide is the main material to produce ferrite.

而四氧化三锰是生产软磁铁氧体的重要原料。

We find that the specific magnetization σof the composites decreases exponentially with the increase of concentration of SiO2 particles, and the effective permeability μ of the composites can be agreement with the effective media theory improved by Musal.

通过对颗粒复合体比磁化强度、磁导率、磁谱以及77K下I~U特性的测量和分析，我们发现复合体比磁化强度随SiO2含量的增多呈指数衰减；用Musal改进的有效介质理论模型能很好地拟合磁导率随锰锌铁氧体含量变化的规律；颗粒复合体显示出共振型磁谱的特征。

Taking advantage of the reciprocity of rotary field phase shifters and nonreciprocity of ferrite circle polarizers, high power duplexing rotary field phase phase shifters are designed.

利用旋转场移相器的互易特性和铁氧体圆极化器的非互易特性，设计出高功率双工旋转场移相器。

Our company can product 3000 tons permanent-magnent iron oxygenant material yearly with good quality and these products sell overs and home and well received from customers with highly evaluation.

公司年产各类永磁铁氧体磁性材料3000吨，产品质量过硬，远销海内外，深得用户好评。

The rodlike nano barium ferrite was prepared in the conditions of pH=4,calcination temperature at 850℃ f...

通过对几个主要参数的摸索，得出制备棒状钡铁氧体的最佳工艺条件：pH值为4，煅烧温度为850℃，煅烧时间2h。

Hong Kong, Xu-hui magnet manufacturing company founded in 1976, in 1987 opened its first plant, after ten years of innovation, has now developed into a production and sales to the main motor with a magnet for permanent magnet ferrite, Soft, samarium cobalt, NdFeB magnetic materials, etc. Products as one of professional manufacturer.

香港旭辉磁石制造公司创建于1976年，1987年设立第一家工厂，经过十多年的创新，现已发展成为集生产、销售以马达用磁石为主体的永磁铁氧体、软磁、钐钴、钕铁硼等磁性材料产品为一体的专业制造公司。

In this proces 1.Co_2Z ferrites obtain the quite good performance. In use second ball grindings in the gelatin spontaneous combustion method foundation to add Bi2O3 agglutinates in the low temperature sinter.

在此过程中得到一些有意义的结果： 1在凝胶自燃法的基础上，采用二次球磨加Bi2O3的方法可获得性能较好的低温烧结Co_2Z铁氧体。

For power supply, we designed through invariable AC input, after being commutated into DC, then inverted AC through IGBT, realized the output of high frequency high voltage sinusoidal wave through inductor to leach wave and high frequency transformer to elevate voltage at last.

在电源的输出电路部分我们主要研究了高频高压变压器的改进，并设计制造了两种不同变比，不同规格，不同材料的高频高压变压器，分别是采用非晶合金材料为铁芯材料的环形变压器和以铁氧体为铁芯材料的U形变压器。

In order to expand the application of MRI contrast agent in clinical studies, in this paper the lyophilized SPIO was prepared.

为进一步拓展MRI造影剂在国内的临床应用，本文制备了注射用超顺磁性铁氧体纳米微粒。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。