Germs and coliform group in purified water and spring water of Yanan City were detected by the plat panel method and much tube ferment method.
用平板培养法及多管发酵法对延安市部分市售纯净水及泉水中的细菌及大肠菌群进行了检测。
A special spring in the receptacle connector connects the ground contact to the metal shell for reliable panel grounding.
插座连接器中的一个特殊的弹簧确保地线通过金属面板可靠接地。
The proposed method is used with FE simulations, and the example of spring-back compensation demonstrates that it is efficient, accurate and robust for auto panel forming process optimization.
该方法无须求解函数灵敏度，在保证拟合精度的前提下，能光滑响应并最大程度减少精确分析计算量，分析前翼子板回弹补偿优化设计实例，证明其具有很高的精度和鲁棒性。
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