main pulse meaning in English

主脉冲

Correlation analysis of the characteristics of main pulses in the light curves of gamma - ray bursts
暴光变曲线主峰特征参量的相关性分析
As the beginning of the whole article , the purpose to discuss this problem is to sort out the main pulse of changes and clear out the orient of innovation in the farmland system : the next two problems particularly inspect and construct market main body and organization of collective land transference ; the last problem inquire into corresponding policies from the angle of economical regulation
第一个问题力求从制度变迁的历史线索中清理出农地制度变迁的主脉，识别农地制度创新的方向，是研究的起点；二、三两个问题着重考察和构建集体土地流转的市场主体和市场组织；最后一个问题从经济调控的角度对集体土地流转中的政策选择加以探讨。