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The results show that firstly, ApoE and LDL receptors can be transported bidirectionally (i.e. retro-and anterogr-adely) in the axoplasm along axons. Secondly, ApoE derived from regenerating fillers can be transported re t rogradely to the cell bodies.

本文用免疫细胞化学法研究正常和再生的大白鼠外周神经中脱辅基脂蛋白E和低密度脂蛋白受体的运输特性，发现在正常的外周神经中，ApoE及LDL受体在轴浆中均可沿轴突正行和逆行运输；再生的神经可产生ApoE，ApoE可逆行向细胞体转运。

In this paper, the military secrect communication is discussed firstly, in which m-sequence and Des encryption algorithm and their fulfillment in AYR embedded-microchip controller is discussed.

文中首先讨论了军事保密通信，其中讨论了m序列和des加密算法，以及它们在单片机中的实现。

Firstly, the secondary absorb measurement mechanism is designed based on the absorbing spectrum of azide methemoglobin, and the concentration equation is derived.

首先，基于叠氮高铁血红蛋白溶液的吸收光谱曲线设计了二次吸收测量机理，并明确了浓度计算公式。

Evan Jones had some new finds from mexico, firstly a selection of fine new malachite pseudomorphs after azurite from Chihuahua, mined within the last year

埃文·琼斯就先后发现一个来自于奇瓦瓦的蓝铜矿和一个来自于墨西哥的新东东--孔雀石假象。

By using the stator currents and back electromotive force as state variables,a T-S fuzzy model and a set of fuzzy rules were firstly transformed to represent the PMSM.

选择全局模糊滑模函数，采用自适应技术对不确定性上界进行估计，所设计全局控制器由T-S模糊局部补偿器与滑模监督控制器构成，给出了自适应律及稳定性的证明。

Firstly, based on natural gradient and nonlinear principal component analysis, a matrix equation is obtained by block recursive updating,and then the matrix equation is solved using QR factorization and back substitution to obtain the optimal separating matrix.

此外，结合自然梯度和非线性主分量分析提出了一种块递归的盲源分离方法，构造出按块递归更新的矩阵方程，然后用QR分解和回代法求解该矩阵方程得到最优分离矩阵。

Firstly, based on natural gradient and nonlinear principle component analysis, a matrix equation is obtained by block recursive updating, and then the matrix equation is solved by using QR factorization and back substitution to obtain the optimal separating matrix.

首先基于自然梯度和非线性主分量分析，构造出按块递归更新的矩阵方程，然后用QR分解和回代法逐块求解该矩阵方程得到最优分离矩阵。

Firstly " Backflash " defined outcome of practice and theory of Xi'an contemporary art as the cultural heritage, such a perspective on the ancient capital of Xi'an in particular context has more profound significance.

"钩沉"首先把1999年到2008年十年间的西安当代艺术实践和理论的成果定义为文化遗产，这样的视角放在古都西安的上下文中尤其显得意味深长。

This text firstly gives a brief introduction of background and content of the task.

本文首先对课题背景及课题内容做了简要的介绍，然后对所采用的开发软件进行了具体的介绍。

The thesis expounds the background and significance of this task firstly, and expatiate the research content and m...

论文首先阐明了课题的研究背景和研究意义，并对本文的研究内容和研究方法加以阐述。

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。