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increased by two times
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  提高两倍
     By means of adding low content of rare earth element La into Sn60 Pb40 solder alloy, the growth of Cu 6Sn 5 intermetallic compound at the interface of solder joint is hindered, and the thermal fatigue life of solder joint is increased by two times.
     在Sn60 Pb40钎料合金中加入微量稀土元素镧可以抑制表面组装焊点界面处Cu6 Sn5金属间化合物的生长 ,进而使焊点热疲劳寿命提高两倍
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  增加1倍
     The relationship between bone mineral density and risk of fracture was analysed by logistic regression ,showing that the risk of fracture was inversely related to bone mineral density. As bone mineral density decreased by 0. 1g/cm2,the risk of fracture increased by two times.
     用logistic回归来分析骨矿含量与骨折危险性之间的关系,结果表明骨矿含量与骨折危险性呈负相关,骨矿含量每下降0.1g/cm2,骨折危险性增加1倍
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  “increased by two times”译为未确定词的双语例句
     As shown by the calculation results, the maximum equivelent strain of the rotor will be reduced by 17-25%when the radius of the transitional arc changes from R3 to R20 and rotor life can thus be increased by two times.
     计算结果表明:过渡圆弧半径从R3改为R20,最大当量应变即能降低17%~25%,热应变集中系数能降低18%~26%,转子寿命可延长两倍左右.
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     With the external feedback, the spectra of the LDA at different drive currents were narrowed to about the tenth of that without feedback, the threshold current decreased from 7 A to 5.5 A, and the output power increased by two times.
     实验中,运行于外腔下的LDA在不同的驱动电流下的输出光谱均被压窄到了原来的1/10左右,阈值电流从7 A降到了5.5 A,并且在9 A的偏置电流下输出功率提高了2倍。
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     The relationship between the value of SOS and risk of fracture was analysed by logistic regression,showing that the risk of fracture was inversely related to the value of SOS. As the value of SOS decreased by 100m/s,the risk of fracture increased by two times.
     用Logistic 回归分析SOS值与骨折危险性之间的关系,发现SOS值与骨折危险性呈负相关,SOS值每下降100m /s,骨折危险性增加约1 倍。
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     Results In women with fracture, the value of SOS in the tibia was significantly lower than that in healthy control subjects (3 712 7 m/s vs 3 831 4 m/s, P <0 01). The relationship between the value of SOS and risk of fracture was analysed by logistic regression, showing that the risk of fracture was inversely related to the value of SOS. As SOS decreased by 100 m/s, the risk of fracture increased by two times.
     结果 骨折组的SOS值 (3712 7m/s)明显低于对照组 (3831 4m/s,P <0 0 1) ,且SOS值与骨折危险性呈负相关 ,SOS值每下降10 0m/s ,骨折危险性增加约 1倍。
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     With this kind of tool the machining rate is increased by two times,the machining cost decreased by 62% and with improved accuracy.
     使用该刀,加工效率可提高二倍,加工成本降低62%,并且还提高了加工精度。
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     CONCLUSION: The increased .
     结论 :.
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     The Iysosome increased.
     内质网数量增加,内质网池扩张;
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     For the later, reliability is increased by.
     对于后一种方案,对排水孔处进行了网格自适应,大大增加了计算结果的可靠性。
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     Those of AAN increased by
     AAN在后三个阶段依次升高-11.29%,!
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     Two points are increased and justified.
     增加了两点并且证明它的正确性。
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  increased by two times
The photosensitivity of MTPD/TiO2 nanostructured hybrids was increased by two times when compared with that of its single component.
      
The loss of strength of the wet fibre attained 60-70% and the elongation increased by two times; the properties of the fibre were almost totally restored during drying.
      
When VT is increased by two times its spontaneous value, the ventilatory drive (VT/TI) is raised in both sexes; the relative duration of inspiration (TI/Ttot) is modified (+20%) in females only.
      
Results of experimental verification of the method including a series of interference patterns with sensitivity increased by two times and different tuning of fringes are given.
      
In addition, if the reference frequency of AFC increased by two times, TAFC can be shortened by half.
      


Paper gives the strain calculation of the H. P. rotor transitional section of the 300 MW steam turbine designed by Shanghai Steam Turbine Plant. As shown by the calculation results, the maximum equivelent strain of the rotor will be reduced by 17-25%when the radius of the transitional arc changes from R3 to R20 and rotor life can thus be increased by two times. Thermal strain and strain concentration factor can also be reduced significantly by changing the single curvature relieve slot into three curvature...

Paper gives the strain calculation of the H. P. rotor transitional section of the 300 MW steam turbine designed by Shanghai Steam Turbine Plant. As shown by the calculation results, the maximum equivelent strain of the rotor will be reduced by 17-25%when the radius of the transitional arc changes from R3 to R20 and rotor life can thus be increased by two times. Thermal strain and strain concentration factor can also be reduced significantly by changing the single curvature relieve slot into three curvature relieve slot. The results of the calculation have been applied in the modification design of the 300MW steam turbine.

本文用弹塑性有限元法.对上汽厂30万千瓦汽轮机高压转子的最危险截面——调节级后过渡圆弧段进行了计算.计算结果表明:过渡圆弧半径从R3改为R20,最大当量应变即能降低17%~25%,热应变集中系数能降低18%~26%,转子寿命可延长两倍左右.对汽封弹性槽计算的结果表明:将原来设计的单圆弧弹性槽改为三圆弧弹性槽,热应变及热应变集中系数均可明显下降.本文的计算结果己用于上汽厂30万千瓦汽轮机的改型设计.

In this paper,the adoptable rangees of process parameters,the coupled zone,the structure and properties of eutectic and hypereutectic Al-Si alloys (Al-12.7-16.6wt,%Si)have been investigated by a new type of continu- ous directional solidification(CDS)apparatus.It's shown that the long casting with shining surface,homogeneous composition and structure can be produced within the adoptable ranges of process,and short-fine fibrous in situ composites of Al-Si eutectic and hyper-eutectic alloys can be made in some...

In this paper,the adoptable rangees of process parameters,the coupled zone,the structure and properties of eutectic and hypereutectic Al-Si alloys (Al-12.7-16.6wt,%Si)have been investigated by a new type of continu- ous directional solidification(CDS)apparatus.It's shown that the long casting with shining surface,homogeneous composition and structure can be produced within the adoptable ranges of process,and short-fine fibrous in situ composites of Al-Si eutectic and hyper-eutectic alloys can be made in some range of freezing rate depending on the silicon content by CDS technology.The flake/fibre transition of the eutectic silicon appears with increasing freezing rates from 0.02mm/s to 2.0mm/s,The tensile strength and percentage elongation increase with the increase of freezing rate.Compared with cast state Al-Si eutectic alloys,the strength of conti- nuously directionally solidified Al-Si eutectic alloys increases by 60%, its percentage elongation increases by two times,from 4% to 12%.The formation mechanism of the fibre structure and the effect of cutectic sili- con morphology on the cracking mechanism of Al-Si in situ composites have been analysed.

本文采用新型连续定向凝固(CDS)装置研究了 Al-Si 合金(成分为12.7%~16.6%Si)的可采用工艺范围、共生区及其连续定向凝固材料的组织与性能。实验结果表明,Al-Si 共晶系合金通过连续定向凝固可以获得短纤维的自生复合材料.在凝固速度为0.02~2.0mm/s 的范围内,随着凝固速度的增加,Al-Si 共晶系合金的共晶硅形态经历了片/纤维转变,抗拉强度及延伸率随凝固速度的增加而增大。本文还分析了 Si 纤维的形成机制。

A volume phase and off-axis holographic Fresnel lenses was developed for matching the corresponding solar cells with different band gaps.The conversion efficiency of energy increased by two times.

用激光制作了离轴体积位相全息菲涅耳透镜,并把它们和相应的具有不同能带隙的太阳电池匹配,其能量转换效率提高了两倍。

 
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