查询词典 explosive device

In this chapter, three kinds of target recognition methods are performed, which are:①Target recognition method based on the description of polarization parameter plane. The echo polarization states of target are projected onto the polarization state plane described by the ellipticity ε and the tilt angle τ of the polarization ellipse, the change of parameter following ferquency becomes the chart. According to the changing trait of the chart, the multidimensional polarization feature space of target has been contructed. Furthermore, a series of polarization feature parameters used in designing the structure of target recognition device are extracted, and they are insensible to the posture of target.②Target recognition method based on the description of Poincare polarization sphere. The echo polarization states of target expressed by Stokes vector are projected onto the Poincare polarization sphere. The conception of polarization ferquency stability, which is used in describing the dynamic distribution characteristics of the target echo polarization states on Poincare polarization sphere, has been defined. A group of polarization feature parameters used in designing the structure of target recognition device are extracted, and they are insensible to the posture of target.③Target recognition method based on the description of frequency sensitivity. In accordance with the conception of the polarization state distance defined on Poincare polarization sphere, the frequency sensibility of the physical structure property of target has been investigated, the frequency distribution feature curves in PSD domain are obtained, and targets'features are extracted by means of the curve-fitting method with Least Square Criterion.

这章具体研究了基于三种极化散射特性描述的相应的目标识别方法：①基于极化参数平面描述的目标识别方法，将目标回波极化状态投影到以极化椭圆参数，即椭圆率角ε和倾角τ表征的极化状态平面上，参数随观测频率的变化就形成了图，根据图的变化特点构造了目标的多维极化特征空间，并提取了不敏感目标姿态变化的极化特征参数组来设计目标的识别器结构；②基于Poincare极化球面描述的目标识别方法，采用Stokes矢量表征目标回波的极化状态，并将其投影到描述极化状态的Poincare极化球面上，定义了极化频率稳定度的概念用以刻画目标回波极化状态在Poincare极化球面上的动态分布信息，提取了准方位不变性的目标极化特征，最后设计了目标的识别器结构；③基于频率敏感性描述的目标识别方法，通过在Poincare极化球面上所定义的极化状态距离的概念，研究的是复杂目标物理结构特性对探测信号频率的敏感程度问题，获得了在极化状态距离下的频率分布特性曲线，采用最小二乘估计曲线拟合方法，它既用于极化特征的降维，同时又直接将拟合参数作为目标的分类特征。

It can be used by any pointing device, including your ownPC mouse as your handwriting device.

该软件能够被任何定点输入设备使用，包括使用你的个人电脑的鼠标作为你的签名的书写设备。

The energy consumption of processing the polytetrafluoroethylene film by the said device is lower than the traditional processing device.

利用本发明所述的设备加工聚四氟乙烯薄膜的能耗低于传统的加工设备，并可加工多层聚四氟乙烯薄膜，层间粘结好，不容易分层，适用面广，生产效率高。

Suspended device: Stick the cupules to the wall or glass, insert the pothook into theflute on the back of the display exactly, slightly press, hang the device on the hook

悬挂式装置：先固定吸盘在玻璃或墙壁上的位置，然后将挂钩对准显示器后面的凹槽插入，轻轻挤压

The measuring device cooperating with displacement sensors and prepositive device can monitor vibration signals including peek-peek value and average value etc. Besides, it can auto-detect the distance that the sensor installed with and alarm if the interval exceeds the alarm value.

该测量仪与位移传感器及前置器配合使用，能够在线监测包括振动峰－峰值和平均值等振动信号量，同时测量仪可以自动检测传感器安装距离，在危险的情况下可以根据事先设定好的报警值进行报警。

2 Disposable safe machine blood sampling device: fill the cavity of the blood sample device with bacterial endotoxin check water, and cover both sides. Put it into a 37OC±1OC thermostat for two hours, then take it out and put the probational liquid into a sterile and corked glass container free of pyrogen.

2.4.2一次性使用安全机用采血器：细菌内毒素检查用水，注满采血器内腔，两端封闭，置37OC±1OC恒温箱中保温2小时，取出后将供试液汇集至一无菌无热原带具塞玻璃容器内。

Passive listening device, so-called "listening king" on the part of such a passive listening device, due to monitor the distance constraints, the actual little use, so even if the public security organs do not use this equipment, they need to listen when they were After the prosecuting attorney authorized to entrust the telecommunications sector to carry out, of course, this is also the law.

被动式窃听器，所谓的"监听王"就属于这种被动式窃听器，由于受监听距离的限制，实际没有多大用处，所以即使公安机关也不采用这种设备，他们需要监听时都是在检察院授权之后，委托电讯部门去进行，当然这也是法律规定。

It comprises the body, cover and fixing piece, heating stove and temperature controller, magnetic driven pulsator and rotate speed controller, pressure testing device, safety device, valve, tube.

包括高压反应釜的釜体、釜盖和紧固件，加热炉及温度控制器，磁力驱动搅拌器和转速控制器，压力测量装置，安全防爆装置，用于取样和通气的阀门、管道，在反应釜内、外加装了一套或者多套内置式反应罐和/或外置式反应罐。

A common heating oxidation device(fig.1)is to place a silicon plate in a quartz crystal glass reaction chamber. In the reaction chamber, a electric resistant wire heating device heat up the chamber to a certain temperature(usually, the temperature is 900～1200℃. In a special condition, it can be descended to under 600℃). When oxygen or water vapour pass through the chamber(typical gas flow speed is 1cm/s). A chemical reaction is generated on surface of the silicon plate.

常用的热氧化装置（图1）将硅片置于用石英玻璃制成的反应管中，反应管用电阻丝加热炉加热一定温度(常用的温度为900～1200℃，在特殊条件下可降到600℃以下)，氧气或水汽通过反应管（典型的气流速度为1厘米/秒）时，在硅片表面发生化学反应

Basket ball foot ball feather racker Soldier s racker do exercise to keep fit the device sport protecting equipment Run spiked shoes eto school athletics device .

篮球，足球，羽毛球拍，乒乓球拍，健身器材，运动护具，跑钉鞋等学校体育器材

The statistical analysis of this large set of mutations has led us to propose a diagnostic strategy that should help with the molecular work-up of optic neuropathies.

这一大系列基因突变的统计学分析引导我们提出一个诊断策略，可以帮助我们对视神经病变进行分子学的诊断检查。

The results show that the pipe grouting changes the mechanical parameters of surrounding rocks to achieve the security of engineering objectives by reinforcing surrounding rocks and bolcking the water.

研究表明：小导管注浆一方面改变了围岩的力学参数，另一方面利用浆液的固结特性可以实现堵水和加固围岩的工程目标，使隧道在开挖过程中的安全得到保障。