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The realization of mechatronical product design driven by performance is explained by a diagrammatical view.

以示意简图的方式形象的说明了实现性能驱动复杂机电产品结构设计的过程。

According to the theory of electrical structure,the microscopic mechanism of magnetic medium diamagnetism is explained rigorously by analyzing the electronic procession external megnetic field.

从物质的电结构理论出发，通过分析电子在外磁场中的进动，严格解释了磁介质产生抗磁性的微观机

The teacher explained that the diameter and the circumference of a circle correlate .

老师解释直径与圆周有相互关系。

Dias explained that Espirito Santo State "represents only 1% off the territory of Brazil" but boasts "40% of granite quarries in the entire country, 60% of the national stone production and 70% of exports".

Dias说道，圣埃斯皮里图州领土只占巴西总领土的1%，但是全国40%的巴西花岗岩矿山都集中在这，其生产量和出口量分别占全国的60%和70%。

The young man is just incredible, and he was slicing and dicing us,explained Spurs coach Gregg Popovich.

"这小伙子太不可思议了，他对我们的制约很大，让我们觉得很没有把握。"

But diffeomorphism invariant theory leaves some problems to be explained, and the meanings of spacetime and physical theory are still in question.

但微分同胚不变理论存在需要解释的问题，空时及物理理论的意义仍不明确。

We have obtained the following main significant results:(1) A master constraint operator for LQG is constructed, which is shown to be self-adjoint in the diffeomorphism invariant Hilbert space. Thus it lays a foundation for the master contraint programme in LQG;(2) The Immirzi parameter ambiguity in LQG is fixed by introducing supersymmetry, which leads to the conclusion that in the case where matter fields are coupled LQG might prefer supersymmetry in low energy;(3) The current accelerating expansion of our universe is successfully explained in the context of 5-dimensional Brans-Dicke theory, which gives a natural strategy to solve the dark energy problem.

重要成果包括：(1)构造出圈量子引力的Master约束算符，并证明了其自伴性，从而为应用Master约束方法解决量子动力学的难题奠定了基础；(2)通过引入超对称合理地固定了Immirzi参数，得出了在与物质场耦合的低能情况下圈量子引力可能偏爱超对称的结论；(3)用五维Brans-Dicke理论成功地解释了当今宇宙的加速膨胀，从而给出了一个自然解决暗能量问题的方案。

According to the demand of high magnetic field power supply, reference is increased with a set ramp rate and stops at a set stable value, so reference system is composed of digital setting and digit to analog converting circuit. But the stability of reference is mostly guaranteed by the performance of D/A circuit, so D/A circuit is particularly studied in reference system. The scheme of D/A circuit, the selection of DAC and its voltage reference, hardware anti-jamming design and PCB design are discussed in detail, and software of remote control and PLC are discussed in brief. Zero-flux DC current transformer well satisfies the demands of the high stability of Load current detection unit, so the principle of zero-flux DC current transformer is analyzed; in the mean time a project which detects the long term stability is designed. During 8 hours, analog signal which is detected with high precision digit multimeter is recorded in computer at 1HZ frequency by GPIB communication. The drift error source and related parameters are explained in the compare-amplify part. Detailed subtraction circuit is designed; also amplifier chip and periphery components are selected and verified according to the theory of error analysis.

根据强磁场电源的需求，参考源应按照软件设定的斜率逐渐上升到设定稳态值，则参考源系统应由数字给定和数模转换电路两大部分组成，而参考源的稳定度主要依靠完成数模转换功能的模拟电路的性能来保证，因此本文对参考源系统的研究以数模转换电路为重点，分别从电路方案的确定、数模转换芯片及其基准电压源的选取和验证、电路板硬件抗干扰和PCB设计几方面进行了论述，然后对数字给定部分的远控组态和PLC程序设计作了简要介绍；采用零磁通原理的直流电流转换器很好地满足了对负载电流检测单元高稳定度的需求，本文详细分析了零磁通检测的原理，并在选定此种类型电流转换器的基础上设计了一套检测长期稳定度的方案，8小时内以1秒为采样周期，通过计算机Labview程序和高精度数字电压表的GPIB通讯，将被高精度数字电压表数字化后的模拟信号采样值连续记录至计算机中；比较放大环节简要阐述了漂移产生的原因和相关参数指标，确定了具体的减法电路形式，并根据误差分析理论对运算放大器和外围元器件进行了选取和验证。

The purposes of digital city construction mainly can be explained as thefollowing reasons, such as the better understanding and more demands of the digitalin information era, adapting to the progress of society as well as maintaining theurban sustainable development.

数字城市的建设主要是适应信息时代对数字的认识和需求，也是为了城市更好的适应进步，维持可持续发展的状态。

In other words, the diminution of memory in the poorer members of their study was entirely explained by stress, rather than by any more general aspect of poverty.

换句话说，在这个实验中，贫穷的人记忆能力的下降可以被完全解释为压力的影响，而不是与贫穷有关的任何其他因素。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。