single pass retention

The influencing factors of cationic hydroxypropylguar gum(CHPG)in the making process of old news paper(ONP)were explored and the influence of such factor as CHPG dosage,pH and electrical conductivity on the first-past retention(FPR)were studied and the synergistic effect of CHPG/borax two composition systems on the fine component were also discussed.

自制阳离子羟丙基瓜尔胶(CHPG)应用于废新闻纸浆抄造过程,探讨了CHPG用量、纸浆体系pH值及电导率等对单程留着率的影响,并进一步研究了CHPG/硼砂的二元体系对细小组分的留着增效作用。

Based on the seismic positioning principle we can do 3D prestack forward modeling by one way acoustic wave equation in complex geological conditions.

在频率域单程方程三维叠前正演中特别适合做波场替换 ,因为震源脉冲与接收响应 (均可视为点脉冲 )的延拓波场在形态上相似 ,而且在延拓波场中每道记录之振幅包络只有一个极值点。

The single-pass yield of acrylonitrile increased by 2%～3% after the catalyst reactivation.

催化剂经活化后可使丙烯腈单程收率提高 2 %～ 3 %。

In this paper we analyzed the reasons that lead to the single pass loss of laser crystal and designed a set of accurate testing system for single pass loss coefficient of Nd∶YAG laser crystal.

本文对导致Nd∶YAG激光晶体单程损耗的原因进行了分析 ,并建立了一套精确测量Nd∶YAG激光晶体单程损耗系数的测试系统。

The reason for the single pass loss of Nd∶YAG crystal has been analyzed.

分析了导致晶体单程损耗的原因 ,设计了测量晶体单程损耗的装置。