tret

The results show that both are caused by decarburization in heat tret-ment.

结果表明,两者均为热处理脱碳所。

It is a labor to task the faculties of a man — such problems of profit and loss, of interest, of tare and tret,(8) and gauging of all kinds in it, as demand a universal knowledge.

这真是一个辛苦的劳役，考验着一个人的全部官能，——这些赢利或失的问题，利息的问题，扣除皮重的计算问题，一切都要确实数字，有全宇宙的知识不可啊。