repeated trauma ==> 重复损伤 repeated zeroes of a characteristic function ==> 特征函数的重零点 ..
双语例句
1
I was suffering from a common sports injury called black toe, jogger's toe or tennis toe, caused by repeatedtrauma.
我受的是一种常见的运动创伤，称黑脚趾，又称慢跑脚趾或网球脚趾，是由于多次重复撞击而引起的。
2
Trauma or repeated exposure to uncontrolled stressors can produce an ingrained sense of helplessness.
创伤或者反复暴露在无法控制的压力下会产生一种根深蒂固的无助的感觉。
3
Nearly 2 million US soldiers have been deployed in Iraq and Afghanistan since 2001 - with many facing repeated exposure to trauma that can put them at a particularly high risk.