Samuel was obliged, while hardening on the main point, to compromise on lesser questions.
塞缪尔在主要问题上愈发强硬的同时，被迫在细枝末节上妥协。
2
The lower heat-treating temperature of the case results from the fact that hypereutectoid steels are normally austenitized for hardening just above the lower critical point.
由于恰好高于低临界温度通常使过共析钢奥氏体化而硬化，所以对外层采用较低的热处理温度。
3
From the micro-region view-point, the five stages of fatigue take place successively, and some new explanations for the fatigue hardening, softening and fracture are given.