notch bar

基本解释

Great difference, however, occurs with root radius R at notch varying when tested in 1 bar hydrogen.
而在氢气中试验，则发现缺口根部半径R的变化对材料断裂强度影响极大；
Host-based authentication is generally a quick and dirty way to raise the bar a notch, but is close to useless.
基于主机的认证通常是设置防护的快速和直接的方法，但它接近于无效。
Split Hopkinson Pressure Bar(SHPB) with a wedge and its holder appended to the end of the incident bar was used to exert dynamic split force at the edge notch of the specimen.
利用分离式霍普金森压杆（SHPB）可以进行混凝土类材料高应变率下的劈裂实验，目前公认的方法是通过透射波信号得到劈裂强度和相应的平均应变率。