primary explosive meaning in English

初发炸药
起爆药

Abstract : this paper sets forth the historical periods of the development and application of primary explosive detonator , and discusses the development of some new types of detonators , points out its tendency and direction in the near future
文摘:阐述了雷管各个阶段的发展概况，概述了目前几种新型雷管的研制、应用以及今后雷管发展的特点和趋势。
Abstract : for the diffculties met in the long - distance transportation of primary explosive and special quantity detonators can be nowhere purchased , the common preparation primary explosive and special quantity detonator are introduced , and the testing results on the detonation susceptibility of secondary explosive in the present condition of laboratory are discussed
文摘:由于起爆药不能长途运输以及特殊药量的雷管无处购买，就实验室条件下，对常用的起爆药及特殊药量雷管的自制方法及测定猛炸药爆轰感度的结果进行了讨论。