锤破机锤头和电铲铲牙爆炸预硬后，其使用寿命可提高约50%。
The life of the hammers and the teeth increase about 50% after explosive hardening.
DH2F已经预硬至37 - 41hrc表面硬度，无需在热处理，性能出色，便加工及雕模。
DH2F has the hard to 37-41 HRC in heat treatment, without surface hardness, excellent performance, and processing and carving mode.
国产新型塑料模具钢主要有预硬钢、时效硬化钢、淬火——回火钢、冷挤压成型模具钢、耐蚀钢等类型。
The new domestic - developed plastic mould steels include prehardening steel . age hardening steel, quenching-tempering steel, cold -forming steel, and anti - corrosion steel, etc.
目的观察预输贺斯(HES)对剖宫产腰-硬联合麻醉血压的影响及总结护理措施。
Objective To study the effect of hydroxyethyl starch (hes) on blood pressure under combined lumber-extradural anaesthesia and propose relative nursing strategies during cesarean operation.
目的观察国产羟已基淀粉预扩容用于腰—硬联合麻醉下剖宫产术中预防低血压等不良反应的效果。
Objective The efficacy of hetastarch(made in China)pretreatment for prevention of complications(hypotension, et al) in combined spinal-epidural anaesthesia for cesarean section was evaluated.
目的观察国产羟已基淀粉预扩容用于腰—硬联合麻醉下剖宫产术中预防低血压等不良反应的效果。
Objective The efficacy of hetastarch(made in China)pretreatment for prevention of complications(hypotension, et al) in combined spinal-epidural anaesthesia for cesarean section was evaluated.
应用推荐