purity requirement

Compared to other types of compact range, the front fed Cassegrain compact range provides larger quiet zone and lower polarization, which satisfies the requirement to the polarization purity in the satellite test and polarization matrix measurement.

相对于其他类型紧缩场而言，前馈卡塞格伦紧缩场具有更大的口面利用系数和较低的交叉极化，可以满足卫星天线测量、交叉极化矩阵测量对极化纯度的要求。

According to the purity requirement for Si powder, a cold plasma reaction chamber with long drop distance and high reaction rate is provided in the paper.

根据硅粉纯化的要求，提供了一种长落程和高反应速率的冷等离体反应器。

Higher quality Power Electronics has higher requirement of FZ single crystal including integrity, purity and larger diameter.

高质量的电力电子器件的发展对区熔硅单晶的高完整性、高纯度、高均匀性及大直径化提出了要求。

Then the process was combined with borax pentahydrate borax high temperature crystallization process and high purity borax pentahydrate meeting the requirement of high-borosilicate glass industry was prepared by one step. ( 3) A novel zinc borate Zn6O ( OH)( BO3) 3has been prepared.

同时与五水硼砂高温结晶工艺衔接，一步得到满足高硼硅酸盐玻璃工业需求的高纯度的五水硼砂。（3）新型硼酸锌Zn6O（OH）（BO3）3的制备研究。

The frequency synthesizer is the critical part of the transceiver, because it could meet the high requirement for the frequency stability, spectrum purity, frequency range and the number of output frequencies.

而频率合成器是射频收发机中的关键部分，它能满足对频率稳定度、频谱纯度、频率范围和输出频率个数等的较高要求。