This paper tests the high-point carrying capacity of prestressed cored slab under Different Concrete Strength by destructiveexperiment which process is simple, clear and easy to implement.
文章通过破坏性试验对不同强度的预应力空心板进行了极限承载能力检验，其过程简洁、清晰、易于实施。
2
The influences of frequency and voltage of electric excitation signal on electric property of fruits with non-destructive and orthogonal experiment method were studied.
采用无损接触检测及交叉试验法研究了电激励信号的频率和电压对果品电特性的影响。
3
Based on the model experiment, a study is carried out on the destructive properties prior to and after the aseismic reinforcement with squat frames.