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。