The test results indicated that the strength of concrete could be estimated by supersonic velocity values.
结果表明由超声波测试得到的声速值可以方便地估算出混凝土的强度。
Then, the base bleed method is introduced on a general supersonic missile to decrease the base drag of the inlet cowl for the first time and is validated by wind tunnel test.
本文首次将底部排气法应用于导弹上,结合一种具有常规气动布局的超声速导弹进行了底部排气方案设计,采用一种“底窝器”来提高进气道整流罩的底部压强,并进行了风洞实验验证。
Conventional and freeze-thawed concrete specimens were detected by a universal test machine. The relationship between supersonic velocity and loading was obtained.
采用常规混凝土和冻融混凝土为试件,在材料万能试验机上进行了破坏实验,得到了不同荷载作用下超声波的波速。
The calculated results agree well with the test results and it shows that the numerical methods can be used for the study of the supersonic ejector.
计算结果与实验结果符合较好,这表明该数值方法是研究超声速引射器的一种重要研究手段。
The strength of negative temperature concrete is tested with supersonic-rebounding method. The results state that the method is suitable to test the strength of negative temperature concrete.
本文将超声回弹综合法用于负温混凝土强度检测。结果表明,超声回弹综合法可以用于检测和评定负温混凝土的强度。
The results obtained in repeated tests show that this test mechanism can be used to measure the pitching damping derivatives for the vehicle models in the transonic and supersonic wind tunnel.
重复性实验结果表明,该装置可用在跨超音速风洞中测量飞行器模型的俯仰阻尼导数。
The supersonic treated powders have a long charge-recharge platform, higher capacity and static cycle life according to the electrochemical performance test.
经装配成电池测定电化学性能,其充放电平台增长,比容量加大,循环性能更优越。
The supersonic treated powders have a long charge-recharge platform, higher capacity and static cycle life according to the electrochemical performance test.
经装配成电池测定电化学性能,其充放电平台增长,比容量加大,循环性能更优越。
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