The principle and method for testing surface crack through direct currentpotential difference are introduced.
首先介绍了直流电位法——裂纹扩展片检测裂纹的方法和原理。
2
To determine the leading causes of fatal injury for urban South African children aged 0-14 years, the distribution of those causes and the currentpotential for safety improvements.
确定南非城市0到14岁儿童受到致命伤害的主要原因,这些原因的分布以及目前加强安全的可能性。
3
And so the main thing employees-and potential employees-look at when evaluating their current jobs and potential offers is wages.