45H

The results show that after 45h of cavitation erosion test , the mass loss of the specimen with ground surface was 1.57 times of that with TIG remelted surface .

结果表明：在45h空泡腐蚀试验后，磨削试样的累积失重量是TIG表面重熔试样的1.57倍；

Specimens cut from turbine disks of a Ni-Cr-Ti type wrought superalloy were heat treated for 29h and 45h at 980 ℃, the high-peak temperature of η - phase precipitation , so as to obtain various η - phase contents .

将从Ni-Cr-Ti型合金涡轮盘上切取的试样在该合金的η相析出峰值温度（980℃）热处理29h和45h，得到含不同η相数量的试样，测试性能。

Conclusion Under the high plateau of middle altitude ( altitude 2 100 - 3 050m ) , in the condition of the light physical labor , the effects of 45h complete SD on the human working memory ability are grossly similar to the plain .

结论中等海拔高度（2100-3050m）的高原，在只进行轻体力劳动的情况下，45h完全SD对机体工作记忆能力的影响与平原大致相似。