1、

The expansion of measuring range from nanometer to micrometer order for testing small amplitude of vibration by using Fizeau gradient-index rod interfer-ometer is reported. The measurement principle is described and experimental results are given.

本文报导斐索型自聚焦棒干涉仪测量微小振动的振幅范围从纳米量级扩展到微米量级的研究工作,介绍测量原理,并给出实验结果。

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2、

Through using the modern well testing interpretation and matching the typical curves of interfer-ence well testing, the parameters of gas pool volume are obtained in this paper, thus providing a new way for early verifying gas pool reserve and reserve abundance.

通过对干扰试井的典型曲线拟合,求出气藏容积参数,从而提出一种早期核实气藏储量和储量丰度的方法。为新探区大气藏早期核实气藏储量给出了一条新路。

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3、

By using 18 RAPD primers to amplify DNA of 6 parents and their 8 F 1, the results showed that 12 different primers varied in the relative ability for showing the polymorphism of the varieties.

用18个引物对6个樱桃番茄亲本及其所配制的8个F1进行RAPD扩增的结果,有12个引物可以扩增,不同引物能显示被检测种质多态性的相对能力也不相同。

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4、

The preliminary results through examining the fruit quality of 7 F 1 using 6 parents showed that some qualities of the F 1 would surpass those of the marketing varieties.

对取自种质库中的6份樱桃番茄材料所配制的7个F1代果实品质的性状调查结果初步显示,有些品质性状存在优于市场上销售品的可能。

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5、

Colour stability and suspension stability of strawberry juice were studied by using different anti-browning reagents.

摘要研究了不同抗氧化剂和亲水性胶体对草莓汁色泽和悬浮稳定性的影响.

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6、

By using proper concentration, PLD inhibitor treatment helps quality maintenance of flat peach fruits after harvest.

基于本研究结果认为适当浓度的磷脂酶D抑制剂正己醛(醇)处理有利于采后蟠桃果实的品质保持。

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7、

The researchers conclude that cats' hunting style may have developed based on their common-sense abilities to infer where prey is, using their hearing.

研究者们总结说,猫的捕猎方式也许是通过使用它们的听觉,基于它们的常识性能力来推断猎物的位置而培养起来的。

四级真题- 2018年 12月 3卷 阅读A

8、

This paper, using characteristic function expansion method, have soluted a vibration response problem of a uniform bar& spring which was subjected to a series of rectangular pulses excitation.

本文运用本征函数展开方法,求解均质杆&弹簧系统受序列矩形脉冲激励的振动响应问题。

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9、

Evaluation of right ventricular function using breath-held FIESTA cine magnetic resonance imaging

屏气快速稳态进动序列心脏磁共振成像评价右心室功能的初步研究

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10、

Currently, using photo-enhance chemical etching (PEC) has been proven to be an efficient method to roughen then-type GaN surface.

现在,光辅助化学湿蚀刻法(photo-enhancechemicalwetetchingmethod)已被证实可以有效的粗化N型氮化镓表面,且会形成规则的六面体形状。

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11、

In this paper accuracy of sensory certification and relative certification of surface, roughens for calliper planes measured using comparison samples was analyzed.

本文分析了卡尺测量面表面粗糙度感官检定和与比较样块比较检定的准确率。

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12、

Lycopene was extracted from tomato skins ( by-products of tomato pulp) using supercritical CO 2. The effect of different pressure, temperature, CO 2 flow rate and time on extraction yield were studies.

采用超临界CO2萃取技术从番茄加工副产品番茄皮中提取出番茄红素。研究了不同的压力、温度、流量和萃取时间对萃取率的影响。

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13、

Optimization of Teaching Process by Using Physics Experiment Course Selection and Management System

物理实验选课与管理系统在优化实验教学过程中的应用

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14、

Using oriented object language "Action Script" to design and control client side logic.

以面向对象的语言Action Script来设计客户端的后台逻辑控制。

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15、

The calculation case shows that the result of collapse strength calculated by using the triaxial stress circle theory is bigger than that by other theories.

通过实例计算,对比分析了用三向应力圆理论与其他几种理论计算的抗挤强度值。结果表明,应用三向应力圆理论计算的值偏大。

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16、

These common sense should be when they start using Clean Bench to explain clearly to staff, should not result in exemption from the accident and loss.

这些常识应在开始使用超净台时就向工作人员讲解清楚,免除不应造成的事故与损失。

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17、

By introducing a single parameter λ and the β function, and using the way of weight coefficient, we give an extension of Hardy-Hilbert ′ s inequality with a best constant factor.

引入单参数λ及β函数,应用权系数的方法,推广Hardy-Hilbert不等式,并证明常数因子是最佳值。

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18、

Because you're using your own body weight, lunges both strengthen your lower body and increase overallflexibility.

因为你一直运用整个身体的力量弓箭步既可以加强下身的力量也可以增加整个身体的灵活性。

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19、

Reaction temperature is determined by co-boiling point while using organic solvent.

使用有机溶剂时,反应温度与共沸点有关.

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20、

The particle turbulence is modeled using kinetic theory of granular flow.

颗粒动理学方法模拟颗粒相湍动能.

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