级循环 meaning in English

stage circulation
stage mass flow

Abstract : the remaining life of speciment is dependent upon loading history , under two level cyclic loading
文摘:两级循环加载条件下，材料的剩余寿命强烈地依赖于加载历史。
By studying the rule of damage evolution and remaining life under conditions of two level cyclic loading , it is considered that damage evolution and remaining life of specimen are dependent strongly on damage and hardening state caused by loading history , under multi - level cyclic loading
通过对两级循环加载下损伤演化规律和剩余寿命的研究，认为在两级(或多级)加载条件下，材料的损伤演化和剩余寿命强烈地依赖于加载历史造成的损伤和硬化状态。