查询词典 vacuum

To study the characteristics of Micro hotplate based vaccum sensor at constant tern perature working mode, the influences of working temperature and dimensions on the working characteristics of MHP based thermal vacuum sensor at constant temperature was analyzed based on the thermal analysis of MHP.

研究了微热板的传热特性，从理论上分析了恒温模式下工作温度和结构尺寸对微热板电阻真空传感器工作特性的影响。

The factors for selecting the wavelength ranges to be measured are considered. The experiment equipment is introduced, with six key issues stressed, radiant power of light source should be higher, width of the I/O slits of the monochromator should be reasonable and both of them should be adjusted to an equal width, the focal length of the convergent lens should be longer, the exit of humidistat should be square, the function of vacuum pump and fog collecting hood is important, and the wavelength adjustment of the monochromator and the auto-record of the measuring signal should be controlled by a micro-computer.

讨论了实验中光波长范围的一些选择因素，详细介绍了实验装置，特别强调了实验装置中的6个要点：即光源的辐射功率要大；单色仪的出入射狭缝要合理且两者宽度应调成一致；会聚透镜的焦距要大；加湿器最后出口的孔必须是方的；真空泵和雾气收集罩的作用；微机控制单色仪波长鼓及测量信号的自动记录。

In vacuum condition, the effect of husk closing degree on resistance to ageing decreased.

闭颖程度较差的种子在衰老过程中产生的弱种子比例较大。

To study the effect of laser flux on impulse coupling coefficient during the interaction between hydrogen fluoride laser and aluminum at air ambient and in vacuum, respectively, by changing laser spot size on the aluminum target, the relationship between impulse coupling coefficient and laser flux is obtained, which are compared with the interaction between CO2 laser and aluminum.

为了研究激光功率密度对氟化氢激光与铝靶相互作用过程中冲量耦合系数的影响，分别在大气和真空中，用聚焦后的激光烧蚀铝靶，通过改变聚焦到铝靶的光斑大小，得到冲量耦合系数和激光功率密度的关系，并将该实验结果与CO2激光和铝靶相互作用的实验结果进行比较。

The miniaturization of the ion trap was achieved by using smaller pumps, a smaller vacuum system and lower RF voltage, as well as a simplified trap geometry (from hyperbolic to cylindrical, then to rectilinear).

离子阱的小型化是通过应用小型真空泵、小型真空系统及较低的射频电压和简化阱结构（从双曲线离子阱到圆柱型离子阱再到矩形离子阱）来实现的。

Screen printing is a polymer-coated paper with ice flower in high smoothness of surface covered with a layer of high vacuum of polymer-coated aluminum, is to determine the quality of ice screen printing quality of one of the key factors.

网印冰不攒覆膜纸是在矮平滑量的纸板表背包围了一层矮平华的假不满镀铝膜，覆膜量量是决不退冰不攒网印量量的关头不败不合之一。

The results of XRD (X-ray diffraction), SEM show that the Al-Cu-Fe quasicrystalline coating is dense and uniform, by preparing from Al70Cu20Fe10 powders with particle size of 325 mesh (4.5μm). After annealing under vacuum condition of 800℃ for 2 hours, it is observed that the icosahedron phase is the major phase together with a few β-Al phase.

由X-射线衍射XRD(X-Ray Diffraction)、扫描电镜SEM分析得出：采用原子比为A170Cu20Fe10、粒度为-325目的粉末制备的涂层，在800℃下真空退火处理2h后，结构均匀致密，二十面体准晶相含量高，并只含有少量的β相。

The invention relates to an idler wheel of vacuum dust-collector which inserts the inner wheel into the casting mould to form the outer wheel without using special combination element, to integrate the inner and outer wheels as a whole.

本发明是关于在不使用专门的结合部件的情况下，在将内轮插入到铸模内部的状态下形成外轮，从而使得内轮和外轮结合成一个整体的吸尘器滚轮的发明。

Compared with other gas discharge switches, such as gas spark gap, vacuum switch, hydrogen thyratron and ignitron, the parameters of PSS, such as hold-off voltage, peak current, rate of current rise, lifetime, time delay, jitter, have been greatly improved.

伪火花开关与其它气体放电开关如高气压火花间隙、真空开关、氢气闸流管及引燃管等相比，开关的各项参数如耐受电压、峰值电流、电流上升陡度、寿命、时延和抖动都有了较大改善。

Field application shows that an immersible pump method is the most ideal method for the oil vacuum unloading system of rail tank wag.

实践表明，卸槽潜油泵法是火车槽车负压卸油系统改造的最理想方法。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。