In July, the futures market for global benchmark Brent crude flipped out of backwardation& when the front-month contract is more expensive that contracts for delivery in later months.

1、

In Shanghai, copper futures continue to be in backwardation – which means that future prices are lower than current prices.

在上海，期铜价格继续维持现货升水行情，即期货价格低于现货价格。

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2、

The price of cotton for immediate delivery is trading at a large premium to cotton for delivery next year a situation known as "backwardation" indicating a lack of available supplies.

即期交割的棉花价格较明年交割的棉花价格有大幅溢价即所谓的“远期贴水”，表明可用供给不足。

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3、

In July, the futures market for global benchmark Brent crude flipped out of backwardation--when the front-month contract is more expensive that contracts for delivery in later months.

7月份，作为全球油价基准的布伦特原油期货价格脱离了倒价结构。所谓倒价结构，是指近月合约的期货价格高于远月合约的价格。

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4、

Fatigue lifetime of valve springs contains two parts: lifetime crack initiation and another for crack propagation.

疲劳寿命一般包括疲劳裂纹萌生寿命和裂纹扩展寿命两部分.

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5、

The rolling contact fatigue life was found to be markedly related the subsurface crack propagation angle.

理论分析和试验结果表明,接触疲劳寿命与次表面裂纹扩展角之间存在着明显的对应关系.

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6、

High-strength alloy steels can experience rapid crack propagation from stress corrosion under certain loading conditions.

高强度合金钢在一定的载荷下承受应力腐蚀会造成裂纹的快速扩展.

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7、

The fracture procedure is a whole process of crack initiation, crack propagation and final fracture.

材料断裂过程为裂纹萌生、扩展和最后断裂过程,组织及实验条件对材料断裂有较大影响.

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8、

Meanwhile , this work shows that crack propagation is limited and stable under cyclic compression.

研究表明,裂纹在循环压缩载荷作用下的扩展能力是有限的、稳定的.

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9、

Shlyannikov , Z . B . Kuang , F . P . Yang ( 2004 ), Surface fatigue crack growth behavior , Russian journal Power Engineering Problems.

杨凤鹏, 林卓英 ( 2004 ), 表面裂纹疲劳扩展的试验, 北京科技大学学报.

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10、

The traditional theory of propagation of fatigue crack is transformed by the closure phenomenon of crackfatigue.

疲劳裂纹的闭合现象改变了传统的疲劳裂纹扩展理论.

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11、

In the present work discovering cutter mark of machining become surface fatigue crack fountain.

在试验过程中发现,疲劳裂纹源多为机加工留在表面的刀痕、划痕.

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12、

The result showed that the cause of leakage is large stress low cycle fatigue crack.

结果表明:泄漏是由大应力低周疲劳开裂造成的.

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13、

The fatigue testing heterogeneous plates showed that the mechanical heterogeneity affected the fatigue crack growth rate.

试验表明,力学不均匀性影响疲劳裂纹扩展速率.

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14、

The result shows that torque, fatigue crack and material are the main reasons for the breakage.

认为扭振、疲劳裂纹及材质是导致万向接轴扁头断裂的主要原因.

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15、

The fatigue crack under thermal load extension is analyzed in this paper.

用试验的方法研究了热疲劳裂纹的扩展过程.

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16、

Space craft orbital mechanics theory and research method were reviewed. The evolution dynamics principle was analyzed.

总结了与演变过程相关的轨道运动理论和研究方法,分析了各个阶段演变的动力学原理.

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17、

The space-craft will circle the moon twice.

宇宙飞船将环绕月球两次.

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18、

You can pilot a space craft and travel in the universe.

你可以驾驶一艘宇宙飞船旅行在宇宙中.

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19、

Container Crane is a large scale port machinery for container loading and unloading.

集装箱起重机是一种大型港口机械,主要用于装卸集装箱.

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20、

Container Crane Company 100 % share of domestic market, international market share is as high as 78 %.

公司集装箱起重机国内市场占有率100%, 国际市场占有率则高达78%.

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