steel tubes for precision applications - technical delivery conditions - welded cold drawn tubes for hydraulic and pneumatic power systems

steel tubes for precision applications - technical delivery conditions - seamless cold drawn tubes for hydraulic and pneumatic power systems

精密仪器用钢管.技术交货条件.液压和气动系统用无缝冷拉管

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the principles characteristics and applications of the hydraulic and pneumatic power transmission basic circuits;

液、气压传动基本回路工作原理、特点和应用；

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work piece will be ground with high-speed revolution of electric or pneumatic power tool.

利用电动或气动工具之高速回转作用将工作实物研磨加工。

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this course relate to basic theory and technique of hydraulic and pneumatic power transmission.

本课程讲授液、气压传动基本理论和技术；

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use of scanning electron microscope

扫描电子显微镜的使用

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by use of scanning electron microscope, modified acrylic fire retardant coating expansion layer microstructure was studied.

基于扫描电镜对改性丙烯酸防火涂料膨胀炭层微观结构进行了研究。

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but hamburg parsley has a large root which is used as a vegetable -- for example, to add flavor to soups.

但是汉堡欧芹有很粗的作为蔬菜的根，比如添加到汤中。

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break up i thought i have green rod can not hurt which know ya you brought large root.

分手时我以为我有绿杖可以不受伤害哪知道丫的你带了大根。

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but hamburg parsley has a large root which is used as a vegetable.

但是汉堡荷兰芹的根部很大，可以用作蔬菜。

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the study of psychology has shown: information from visual is the most among all the sensory organs, and color is a visual stimulation.

心理学研究表明：在人的感觉器官中，视觉的信息量最大，而色彩是引起产生直接反应的一种视觉刺激。

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pattern adaptation is one of the important properties in visual psychology and visual neurons' response to visual stimulation.

图形适应是视觉心理学和视觉细胞对视觉刺激反应的重要特性之一。

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it has been confirmed that visual development holdback due to abnormal visual stimulation is the radical reason of amblyopia.

多年来人们一直从临床和基础不同角度进行弱视发病机理研究，早期研究明确视觉刺激异常导致的视路发育障碍是形成弱视的基本原因。

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blindness might be caused by the injury of any section in the visual pathway, electrical stimulation could excite the neurons in the injured section and eventually got some sort of visual information, which was called artificial vision rehabilitation.

视觉通路中任何一段的损伤均会导致失明，通过电刺激可使该处神经产生兴奋，并最终得到某种视觉信息，即人工视觉修复。

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comparison about visual evoked potential through stimulation with checkerboard and square-wave grating in amblyopia children

弱视儿童由棋盘格和条栅刺激产生的视觉诱发电位的比较

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response of visual cortex to visual stimulation: a combining study of bold-fmri and mr spectroscopy

视觉皮层对视觉刺激反应的研究&脑功能磁共振成像及磁共振波谱的联合应用

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for children that can sit and crawl, select toys made of cloth, are brightly colored, and can produce sound to provide visual and auditory stimulation.

可为已学会坐卧与爬行的婴儿挑选颜色鲜艳、有声响的布制玩具，以刺激其视觉与听觉的发展。

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by comparing classification results, we found that different visual and auditory stimulation had hardly impact on the classification accuracy of left and right hand motor imagery.

通过分类结果的比较分析，发现全电极数据分类精度高于C3、C4双电极数据分类精度，不同的视听觉刺激对左右手运动想象分类精度基本无影响。

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conclusion: good ventilation, maintenance of fresh air and removal of odors in ship cabins, decrease in noise and vibration levels, decrease in visual stimulation, proper rest on bed, good sleep and satisfactory diet could effectively reduce incidence rate of seasickness during sea training.

结论：加强艇的通风、保持空气新鲜、去除异常气味、降低噪音与振动、减少视觉刺激、平卧休息、降低重心、加强睡眠、注意饮食可以降低晕船的发生率。

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a new technique that called the complex stimulation of the same frequency method was also developed in the current work. it can improve stimulation efficiency when there are several visual stimulation modules on the screen, which is especially suitable for the transient visual evoked potential based bci.

本文提出了一种新的同频次复合刺激方法，当屏幕上同时存在多个刺激模块时，该方法能提高刺激效率，特别适于瞬态诱发电位脑机接口应用。

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our results show that during adaptation, the mean firing rate ( mf) of v1 neurons to visual stimulation is highly correlated with its burst firing frequency ( bf) in both old and young adult cats.

青年猫和老年猫V1神经元对视觉刺激的适应过程中，神经元对视觉刺激的平均发放频率（MF）与簇发放频率（BF）有很高的相关性。

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