功能选择单

The lifetime of the scintillometer has been extended and the application environment has been widened.The scintillomenter has a 51 series of microcomputer with a powerful 89c52-core.As soon as connected to the power an...

仪器主机选用了功能强大的 51系列单片微机芯 89C52为核心，只要接通电源，输入各项选择参数，仪器即可长期运行，产出可靠数据，入地震传输网即可传输，是对气氡监测首选的仪器。

Based on the laser longitudinal mode splitting theory, a novel scheme of dual-frequency laser with large frequency-difference is presented using electrically controlled birefringence of liquid crystal, and the transmitted resonant mode splitting by birefringent of Fabry-Perot etalon has been analyzed theoretically. A new element of liquid crystal Fabry-Perot etalon is designed and fabricated, which serves as aselector and splitter of both laser longitudinal modes and Fabry-Perot etalons transmitted resonant modes. Two different experimental systems of laser-diode end-pumped Nd:YAG laser have been set up using two different LDs, and the transmission of liquid-crystal cell have been measured. When the empty LCFP is inserted in the cavity of high-power LD pumped Nd:YAG laser, the oscillation of a single laser longitudinal mode have been observed, such a result shows that the designed and fabricated LCFP element is capable of selecting single axial mode. While an anti-reflected liquid crystal cell is inserted in the cavity of Nd:YAG laser end-pumped by the high-power LD, it is difficult to confirm weather the laser longitudinal modes have been spitted or not. The subject is summarized in this thesis and the improvement of the project has been presented.

论文以激光纵模的分裂理论为基础，提出了可望获得几十GHz甚至上百GHz的液晶电控双折射双频Nd：YAG激光器的总体方案，并对用双折射效应分裂F-P标准具透射谐振模进行了理论分析；设计并加工了一种集激光纵模选择、激光纵模分裂和F-P标准具谐振透射模分裂于一体的多功能元件——液晶电控双折射F-P标准具；建立了两种不同功率激光二极管端面泵浦的Nd：YAG激光实验系统，并对液晶盒的透射性质进行了测试；将未灌注液晶的空液晶F-P摘要标准具插入大功率LD泵浦Nd：、叭G激光谐振腔内，观察到了单纵模激光输出，说明所设计和加工的液晶F一P标准具具有纵模选择能力；将镀有增透膜的液晶盒插入大功率LD泵浦Nd八7AG激光谐振腔内，是否产生了激光纵模分裂现象还难以确定。

To add a description of the selected picture, click the right mouse button, the shortcut menu select "Note Title" to open the note window title; and then in the "label" column select "formula","form" or "chart"; final in the "Title Notes" column enter the comment text, and then point the "OK" button the end.

选定要添加说明的图片，单击鼠标右键，在快捷功能菜单中选&题注&，以打开题注窗口；然后在&标签&栏选择&公式&、&表格&或&图表&；最后在&题注&栏输入注解文字，再点&确定&按钮结束。

From the menu, left click on 'Trading', then 'Blotters' or left click on the relevant icon

在功能表中左键单击'交易'，然后选择'交易记录'，或在工具栏

Full on-chip hardware support of semaphore signaling between ports Fully asynchronous operation from either port Separate byte controls for multiplexed bus and bus matching compatibility Supports JTAG features compliant to IEEE 1149.1 LVTTL-compatible, single 3.3V (150mV) power supply for core LVTTL-compatible, selectable 3.3V (150mV)/2.5V (100mV) power supply for I/Os and control signals on each port Available in 208-pin Plastic Quad Flatpack, 208-ball fine pitch Ball Grid Array and 256-ball Ball Grid Array Industrial temperature range (C40C to +85C) is available for selected speeds

全片的旗语信号港口之间无论从港口独立的多路复用总线和控制总线字节完全支持异步操作的硬件配套兼容性支持JTAG功能符合IEEE 1149.1的LVTTL兼容，（150mV的）电源为3.3V单核心的LVTTL，兼容，（150mV的）/ 2.5V的选择3.3（100mV的）电源供应为我/ O和每个端口208引脚塑料方形扁平，208球细间距球栅阵列和256球的球栅阵列控制信号工业温度范围（C40C至+85 C）是选定的速度可

Our single-screw and double-screw extrusion machines have been used to produce the following foods: extrusion leisure snacks, breakfast cereal foods, pet food and aquatic feeds, texturized proteins and vegetarian meat, biologic and chemical raw materials etc; more than twenty production lines with different powers and capacities can be chosen; at the same time, we can provide special design according to clients requirements.

我们的单/双螺杆挤压膨化设备已用于生产：膨化休闲食品；早餐谷物食品；宠物食品、水产饲料；组织蛋白、素肉；生物、化工原料等；并有二十余条不同功能及产量的生产线可供选择，同时还可根据用户的特殊要求进行专门的设计制造。

Objective: The aim of this study was to estimate the contribution of polymorphisms in the positionally cloned asthma candidate genes ADAM33, PHF11, DPP10, GPRA and PTGDR to the risk of asthma, total and specific immunoglobulin E level, lung function and wheezing in a large, nationally representative, population.

为了评价原位克隆哮喘候补基因ADAM33， PHF11， DPP10， GPRA 和 PTGDR的多态性与哮喘发病危险因素之间的联系，Blakey等人在全国范围内进行了一项大型调查，他们选择了英国白人家族中1958年出生的独生子作为研究人群(n = 7703)，询问其喘息症状，测其总IgE、特异性IgE、肺功能，同时对其某些基因型和单核苷酸多态性进行相关分析。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。