| met. | 退火 | annealing (① The major purpose of annealing is to soften hard steel so that it may be machined or cold worked. 退火的主要目的是对硬钢进行软化以便可以对其进行机加工或冷作处理。② After annealing, cooling, and removal of scale, the steel rod is pointed at one end and then inserted through a hole in the die slightly smaller than the size of the rod. 钢盘条经退火、冷却和清除氧化皮后，将其一端锤尖，插人比盘条直径稍小的拉模孔中。) |
