It is seen as amelioration of general single - site and multi - site communication system . and it is also seen as supplement of trunking communication system 它可以看作常规单基站通信系统和常规多基站系统的改进和集群通信系统的补充。
Energetic materials for defense . physical - chemical analysis and properties . 2 - nitrodiphenylamine of single and multibases materials . method by liquid chromatography 国防用高能材料.物理-化学分析及特性.单基及多基材料的2 -硝基二甲基苯胺.液相色谱法
Energetic materials for defense . physical - chemical analysis and properties . diphenylamine and nitrated derivatives of single and double base materials . method by liquid chromatography 国防用高能材料.物理-化学分析及特性.单基和双基材料的二苯胺和硝化衍生物.液相色谱法
The ageing experiments of single - based and double - based deterred thick - web oblate spherical propellant powder have showed that the transference of deterrent was insignificant within the storing time 单基、双基钝感球扁药的老化实验表明,在藏贮的时间内,钝感剂迁移不明显。
Energetic materials for defense . physical - chemical analysis and properties . diphenylamine of single and double base materials with dinitrotoluene or ethylene glycol dimethracrylate . method by liquid chromatography 国防用高能材料.物理-化学分析及特性.含三硝基甲苯或乙二醇二甲基丙烯酸酯的单基和双基材料的二苯胺.液相色谱法