1. turbine parts to be casehardened may be manufactured from any one of a number of plain or low alloy casehardening steels.

2.indeterming the hardness of case hardened parts it must be kept in mind that the method of testing must be adjusted to the depth of case, otherwise true values will not be obtained.

3. where heavy cases are desired carburize as usual and cool slowly, leave in carburizing box, to room temperature.

밑줄 친 부분 중점으로 번역이 어렵네요~ 헬프미~~