The secondary ageing time has little effect on the mechanical properties of the alloy.
二次时效温度高于100℃时,合金的主要强化相由θ′相逐渐转变为Ω相。
The influence of secondary ageing on the mechanical properties of 7055 Al alloy was investigated on the basis of Vickers hardness measurement, tensile test and Kahn tear test.
利用维氏硬度和拉伸力学性能测试、Kahn撕裂试验等方法,研究二次时效对7055铝合金力学性能的影响。
Based on TEM and SEM observation, the effect of secondary ageing on microstructures and Kahn tear fractographs of 7055 Al alloy was investigated.
利用透射电镜和扫描电镜研究了二次时效处理后7055合金显微组织及Kahn撕裂断口形貌特征。
This paper mainly introduces that the Stark fission energy of the hydrogen atoms in the outer-field is calculated by the perturbation method,and discusses the secondary effect and the question on the ionization of the hydrogen atoms in the strong outer-field.
本文将主要介绍用微扰论的方法计算氢原子的斯塔克分裂能及二次效应,并简要讨论氢原子在强场中的电离问题。
The aircraft vulnerability assessment method was proposed by means of kill tree diagram and state transition matrix,under the conditions of multiple hit and counting quadratic effect,in four instances of the quadratic effects between components of nonredundant to nonredundant,nonredundant to redundant,the redundant to nonredundant,redundant to redundant.
用毁伤树和状态转换矩阵法,分非余度部件对非余度部件、非余度部件对余度部件、余度部件对非余度部件,余度部件对余度部件4种情况,对多击中条件下计入飞机部件二次效应的飞机易损性计算方法进行了讨论,并对毁伤树法和状态转换矩阵法在飞机二次效应计算中的应用进行了研究。
The influence of quadratic effect of ion-beam etching on pattern profile and the influence of ion-beam etching incidence angle on slope of pattern sidewall are studied.
介绍了离子束刻蚀的二次效应对图形轮廓以及离子束刻蚀入射角对图形侧壁陡度的影响。
and its forming is analysed including photoresist,temperature effect and quadratic effect.
针对波导沟道制作的蚀刻工艺,讨论利用反应离子束蚀刻技术制备波导沟道的工艺条件对面形的影响,对严重影响面型的草地现象形成原因和工艺改善进行实验实践,包括光刻胶、温度效应、二次效应等因素,并提出进行光学稳定、调节离子入射角和改变刻蚀气体压强等减小草地现象的措施,对蚀刻低损耗波导进行有益的探索。
Study on Inflorescence Differentiation of the Second Fruit of Vitis Vinifera L.;
欧亚种葡萄二次果花序分化机理研究
He was to have three attempts at the second part of his final exams, failing to qualify each time.
他参加了三次第二阶段考试,结果三次均未通过。
If you get convicted of drunk driving for a second time,
如果你第二次被判酒醉驾驶的话,
This occurs biennially, as in many fruit trees.
象多种果树那样二年发生一次。
Evaluation of antihypertensive effect of Zhenjujiangya tablet after twice administration both at morning and noon by ambulatory blood pressure monitoring
珍菊降压片早、中二次投药的降压效果
Effect of secondary treatment of 1-MCP on nanguo pear storage impact
1-MCP二次处理对南果梨贮藏效果的影响
The event was the beginning of the end of the Second World War.
这一事件成了第二次世界大战终局结果的先兆。
Quality Analysis for the Bottom Cable Acoustic Positioning Result
海底电缆水下声波二次定位成果质量分析
Study on Mechanism and Controlling Technology of Formation of the Second Haze in Apple Juice Concentrate;
苹果浓缩汁二次混浊形成机理及控制技术研究
Effects and Designing of Glass Furnace with Second-Throat
玻璃窑炉二次流液洞的结构设计与效果分析
Study on effects of two-stage sterilization conditions on shelf life of the high-moisture baked shrimp
杀菌条件对高水分烤虾二次杀菌效果的影响
Contrast study on the clinical effects of electrosurgical retraction and secondary gingival retraction
电刀排龈法与二次排龈法临床效果的对比研究
Monitoring Results of Secondary Water Quality in Kalmary City during 2006-2008
2006—2008年克拉玛依市二次供水水质监测结果
I was unsuccessful, and I knew it; and tried again, and was again unsuccessful and always unsuccessful;
我明白,一次不成功,我就再试一次,结果是接二连三的失败。
After the first false start,any swimmer starting before the starting signal has been give shall be disqualified.
如果运动员第一次犯规后第二次出发仍然抢跳,则被取消比赛资格。
Article22 The results of the annual appraisal shall fall into three grades: excellent, competent and incompetent.
第二十二条年度考核结果分为优秀、职、称职三个等次。
the second, third, fourth, etc power of x x
的二次、 三次、 四次等幂
If it is very clean, it may have a higher value as a waste oil feedstock for re-refining than for burning.
如果清洁度较高,则废油二次精炼比燃烧处理具有更高的价值,
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