A document may be signed by handwriting, facsimile signature, perforated signature, stamp, symbol or any other mechanical or electronic method of authentication.
单据可以通过手签、签样印制、穿孔签字、盖章、符号表示的方式签署，也可以通过其它任何机械或电子证实的方法签署。
Critical sanding prediction model with perforated well completion was established using the theory and method of rock mechanics based on rock burst criterion.
以岩石破坏准则为基础，采用岩石力学的理论和方法，建立了射孔完井临界出砂预测模型。
The predicted transmission loss of perforated tube silencers using the finite element method and experimental results are compared and showed good agreement.
使用有限元法计算穿孔管消声器的传递损失，并与实验测量结果进行了比较，二者吻合良好。
Conclusion lamellar keratoplasty combined with interlamellar padding is an effective method to treat perforated corneal ulcer.
结论角膜板层移植联合层间填垫术是治疗角膜溃疡穿孔的有效方法。
The shooting method, sub and super solution method, and fixed point theorem were used to study a class of nonlinear diffusion equations with nonlocal boundary value condition in perforated domains.
利用打靶法、上下解方法和不动点定理等工具，研究有孔区域上一类具非局部边值条件的非线性扩散方程。
In acoustics aspect, the paper improves the method of calculating transmission loss and analyses emphatically the influence of structure parameters of perforated structure to acoustic performance.
在声学方面改进了传递损失的计算方法，着重分析了穿孔结构参数对消声器声学性能影响。
This paper attempts to use finite element method through computer simulation to study the absorption characteristics of the perforated-panel absorbers.
本文尝试利用有限元法通过计算机模拟来研究穿孔板吸声结构的模态频率和布置位置。
In most of the experiments reported to date, the perforated metal films were fabricated by the focused-ion-beam method, and their transmission enhancement was in the visible and near-infrared regions.
根据目前的实验研究报道，这种周期结构金属薄膜通常利用聚焦离子束刻蚀工艺来获得，器件的光学响应在可见光波段和近红外波段。
This paper gives the elastic differential equation of collapse of perforated casing, and a general formula for reduction factor of elastic collapsing by perturbation method.
建立了射孔段套管弹性抗挤性能分析控制一般方程，并采用摄动理论给出了的孔段套管弹性抗挤能力降低系数一般计算公式。
In the view of structure analysis, this paper discusses the application of ANN method to the analysis of antenna perforated panel.
本文从结构分析的角度，探讨神经网络方法在打孔天线反射面板分析中的应用。
A numerical method is then proposed by applying the method of finite member element for analysing dynamic characteristic of the structure with perforated core walls.
利用有限杆元法，提出开洞核芯筒结构动力特性分析的数值方法。
This paper presents the design method of a kind of highly effective compact perforated-plate heat exchanger.
论述一种高效紧凑孔板换热器的设计方法。
This paper presents the design method of a kind of highly effective compact perforated-plate heat exchanger.
论述一种高效紧凑孔板换热器的设计方法。
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