The method of 2-D flaw identification using elastic wave is studied in this paper.
文章研究了一种利用弹性波识别二 维 缺陷形状的方法.
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Using cold extrusion can enhance production efficiency and reduce product cost.
用冷挤压的方式加工该零件可以提高生产效率,降低产品成本.
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Using eccentric wheel and spring, an instrument was developed in this study.
采用偏心轮和弹簧结构, 研制了口腔修复体疲劳寿命测试机.
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The IP packet can now be delivered using the destination hardware address.
现在可以用目的地硬件地址发送IP数据包了.
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Finally the correctness of the expression was proved by using numerical simulation.
最后用数值仿真方法验证了本文推导出的表达式的正确性.
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Tread is machined using numerical-control machine . Mill tool is designed.
在数控铣床上加工螺纹,需要设计盘形铣刀.
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Using the homotopy analysis method, the approximation solution is obtained.
利用同伦分析方法, 得到了该模型的近似解.
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The size of liposomes prepared by freezing and thawing was measured using laser scattering ( LS ) .
采用激光散射 法测量 了以冻融法制得的脂质体的粒度.
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The frequency domain model of its control system is studied using state space average method.
分析了通信电源倍流整流电路的工作原理,应用状态空间平均法建立了倍流整流电路的频域模型.
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同时, 它还克服了直接用分数阶微分检测边缘时,有边缘漂移的问题.
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土壤遭受侵蚀后致使“土壤水库 ” 库容损失严重,雨水进入“土壤水库 ” 的通道受阻.
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The filament winding using the new method was accurate and reliable in the string pattern.
应用上述方法设计的控制系统,使纤维缠绕机的纤维缠绕线型准确、可靠.
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应用淹水培养方法,研究了铵态氮肥对土壤氮素的激发效应.
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General in the pump and vane pump can not meet the requirements when using piston pump.
一般在齿轮泵和叶片泵不能满足要求时才用柱塞泵.
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采用泡沫分离技术净化湿法磷酸除铁是一种新工艺.
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This is a cross cultural study the speech act of apology, using two questionnaires.
用调查问卷的方式对言语行为“道歉”进行了跨文化研究.
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通过数值模拟绕流过程,揭示了旋成体尾迹涡系的演化机理.
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