rapid excavation的意思|示意

Excavation and trace element analysis indicates: Jehol biota experienced mass mortality and rapid burial; toxic gases of the volcanic activities are the main factors of biological catastrophic event.

化石发掘和微量元素分析表明，热河生物群经历了集群死亡和快速掩埋，火山活动的有毒气体是生物灾难事件的主要因素。

The rapid excavation, one minute rescues early on many survival possibilities.

迅速挖掘, 早一分钟救出就多一线生存的可能.

互联网

This paper gives a brief description on the measures taken for rapid excavation of large openings as well as th…

本文简要论述了大断面采准巷道快速掘进采取的措施及取得的经济效益。

During the in-vein preparotory working, research was made of the rapid excavation technology and ventilation at in-vein preparatory work.

并在实施过程中进行了快速采掘技术和脉内采准通风的研究。