分析结果表明,接触导线线质、张力和刚度以及列车运行速度、波动传播速度和抬升力是影响导线疲劳可靠性的主要因素。
Analyses results show that the materials, tension and rigidity of wires, speed of trains, wave speed, and lift forces are primary factors that affect fatigue life of contact wires.
去年,生产芭比娃娃的美泰公司在其产品线中增加了一些有不同肤色和不同发质的芭比娃娃。
Last year Mattel, the company that makes Barbie dolls, added some Barbies to its line that have different skin tones and hair textures.
上述两根管子最开始是接到水面“深水地平线”钻井平台的,而如今已经重新被专业人员用重质的管道连接到了附近一个叫做管汇(manifold)的金属架状结构上。
The two pipes, which originally went up to the Deepwater Horizon, have been reconnected with heavyweight hoses to a metal framework called a manifold that has been installed nearby.
若同时保持吸气过热度一定,则三联式系统内两单机的膨胀阀开度、制冷剂质流量、制冷量呈现出抛物线的依变关系;
With the suction superheat kept constant meantime, the valve opening, refrigerant mass flow rates and the cooling capacity between two individual units exhibit a parabola relationship.
河南省西峡县北部蛇尾地区秦岭群变质泥质岩系的黑云二长榴线岩中的石榴石成分环带是连续变质反应的结果。
The zoned garnets of tne metapelites from Qinling Group in Shewei area, Xi-Jtia county, Henan Province can all be attributed to the continuous reactions.
本文对深海硅质岩系中这一界线地层牙形石动物群特征进行了简要的描述。
We also concisely described the characteristics of the conodont fauna through the boundary strata.
所有的神经质的症状有如他们的物体保卫病人的自尊工作和借此也他已经生长的生命线。
All neurotic symptoms have as their object the task of safeguarding the patient's self-esteem and thereby also the lifeline into which he has grown.
实验结果表明,基于局部线模型的融合方法在增强感兴趣的特征和提高图像质最上优于传统算法。
Experiments show the superiority of local line model based fusion algorithm over traditional methods in enhancing the feature of interest and the quality of the fused image.
项目内容:利用二氧化碳资源,新建碳酸二甲酯、粒干冰粉、杨酸、质氧化鲜、酸钠、撑脲生产线。
Content of the project: utilize CO2 resource, to set up production lines of methyl carbonate, granular dry ice powder, salicylic acid, sodium carbonate and ethylene urea etc.
它们体积细小,细胞质浓,细胞核大,无大液胞,细胞壁薄,具有较多粒线体和核糖体,能不断进行细胞分裂。
They are usually small, with dense protoplasm, large central nucleus and few vacuoles. Their cell walls are thin and without secondary deposits. They have large Numbers of mitochondria and ribosomes.
采用平面二维水流泥沙数学模型进行堤线改线影响计算,模型考虑了悬移质及推移质泥沙运动、桥渡及料场的阻力变化。
The2-D flow and sediment mathematical model is used to compute the effect of the engineering of riverside embankment change.
采用平面二维水流泥沙数学模型进行堤线改线影响计算,模型考虑了悬移质及推移质泥沙运动、桥渡及料场的阻力变化。
The2-D flow and sediment mathematical model is used to compute the effect of the engineering of riverside embankment change.
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