紧张动作 meaning in Chinese

tonic action

This is a combination of nervous and autoerotic actions
这是一个紧张动作和自体性行为动作的结合。
Even then i was still so much interested waiting for the ship to touch , that i had quite forgot the peril that hung over my head , and stood craning over the starboard bulwarks and watching the ripples spreading wide before the bows
这以前，我一直绷紧每根神经注意副水手长的一举一动，但刚才那一连串的紧张动作使我只留心船触岸的事了，完全顾不得还有生命危险。