查询词典 roller blind

Such as Open-type/ Sealed-type Blind Rivet, Stainless steel Blind Rivet, Steel-made Blind Rivet, Multi-grip Blind Rivet, Peel type Blind Rivet, Large flange Blind Rivet, Colors Blind Rivet and the so on.

如开放式/密封型盲铆钉，不锈钢铆钉盲、钢铁制盲铆钉，多握盲铆钉、果皮类盲铆钉，大型法兰盲铆钉、盲铆钉和颜色等。

Product specifications complete factory models, the main products of industrial machines with special-shaped brush, brush roller, brush set, brush with, stainless steel spring cruising brush, brush roller, rubber roller, polyurethane elastomer roller, sponge roller absorbent , as well as various civilian brush such as: bottle brush, glass cleaning brush, tube brush, roller brush, wall brush, paint brush, etc..

本厂产品型号规格齐全，主要产品工业机械用异形毛刷，毛刷辊，毛刷盘，毛刷带，不锈钢弹簧绕圈毛刷、毛刷辊，橡胶辊，聚氨酯弹性胶辊，海绵吸水辊，以及各种民用刷如：奶瓶刷、玻璃杯清洗刷、试管刷、滚筒刷、墙刷、油漆刷等。

The ring is rolled by drive roller and mandrel roller, drive roller offer rotation to make ring rotate continuously and mandrel roller offer line feed to make the ring wall become thinner and thinner. The guide roller ensure the ring rolled comfort, and inspect roller check the rings diameter whether reach the limit dimension.

主动辊提供转动，使环件变形区不断循环周而复始的通过轧辊孔型；芯辊提供直线进给运动，使环件壁厚不断减小以实现环件直径扩大的加工过程；导向辊保证轧制平稳进行，检测辊测量轧制环件尺寸是否达到要求以停止轧制。

This article in the collection analyzes the domestic and foreign high speed roller bit bearing research pertinent data in the foundation, in view of the present high speed roller bit bearing in the field application existence's question, through to the roller bit bearing main failure mode and the reason analysis, found the extension roller bit service life the theory basis, uses the method which the theory and the experiment unified to develop to the roller bit bearing surface strengthening technology as well as the bearing enclosure system's preliminary study, has provided a new mentality and the method for roller bit's design, further impelled the modern well drilling processing technology the development.

本文在收集分析国内外高速牙轮钻头轴承研究有关资料的基础上，针对目前高速牙轮钻头轴承在现场应用存在的问题，通过对牙轮钻头轴承主要失效形式和原因的分析，找到延长牙轮钻头使用寿命的理论依据，采用理论与实验相结合的方法开展了对牙轮钻头轴承表面强化技术以及轴承密封系统的初步研究，为牙轮钻头的设计提供了一条新的思路和方法，进一步推动现代钻井工艺技术的发展。

9 Class from P0-P2 level, medical equipment bearings, wheel bearings (four points, cross-, three-row, double row, ball columns mixed) large-scale, large deep groove ball bearings, cylindrical roller bearings, spherical self-aligning roller bearings, angular contact ball bearings, tapered roller bearings, thrust ball and thrust angular contact ball bearings, thrust cylindrical roller bearings, thrust tapered roller bearings, Thrust Self-aligning roller bearings, wheel bearings and inch tapered bearing with special structure and non-standard and dozens of types, and can be processed inside diameter Φ150 ~Φ5000mm bearings.

0，1，2，3，4，5，6，7，8，9类从P0-P2级，医疗器械轴承，转盘轴承（四点，交叉，三排，双列，球柱混合）大型，特大型深沟球轴承，圆柱滚子轴承，球面调心滚子轴承，角接触球轴承，圆锥滚子轴承，推力球和推力角接触球轴承，推力圆柱滚子轴承，推力圆锥滚子轴承，推力调心滚子轴承，转盘轴承和英制圆锥及非标准特殊结构轴承等几十种类型，可以加工内径Φ150～Φ5000mm的轴承。

The registered mark of Derun is WDRZ. We specialize in manufacturing thrust roller bearings. Our main products are thrust ball bearings, thrust cylindrical roller bearings, thrust taper roller bearings, thrust angular contact ball bearings and thrust aligning roller bearings ,deep groove ball bearing,spherical plain bearing,self-aligning bearing ,slewing bearing,and so forth. We also produce non-standard thrust roller bearings ,cylindrical roller bearing ,tapered rolling bearing,oscillating bearing,four-point contact ballbearing according to customers' requirements.

瓦房店德润轴承制造有限公司注册商标为&WDRZ&是专业制造推力找的制造厂家，产品包括：推力球轴承、推力角接触球轴承、推力圆柱滚子轴承、推力圆锥滚子轴承、推力调心滚子轴承、满滚子圆柱轴承、关节轴承、深沟球轴承、英制圆锥轴承，并且可以根据用户要求设计制造各种非标准轴承。

The registered mark of Derun is WDRZ. We specialize in manufacturing thrust roller bearings. Our main products are thrust ball bearings, thrust cylindrical roller bearings, thrust taper roller bearings, thrust angular contact ball bearings and thrust aligning roller bearings ,deep groove ball bearing,spherical plain bearing,self-aligning bearing ,slewing bearing,and so forth. We also produce non-standard thrust roller bearings ,cylindrical roller bearing ,tapered rolling bearing,oscillating bearing,four-point contact ballbearing according to customers' requirements.

瓦房店德润轴承制造有限公司注册商标为&WDRZ&是专业制造推力轴承的制造厂家，产品包括：推力球轴承、推力角接触球轴承、推力圆柱滚子轴承、推力圆锥滚子轴承、推力调心滚子轴承、满滚子圆柱轴承、关节轴承、深沟球轴承、英制圆锥轴承，并且可以根据用户要求设计制造各种非标准轴承。

Solar film shades - Window film blind, sun control blind, solar film blind, roller blind, vertical blind, protects against fading, protect eyes and skin, glare reduction, One way vision mesh, Daytime privacy.

防晒膜窗帘–防晒隔热窗帘、防晒卷帘、防晒垂直帘、隔热卷帘、隔热垂直帘、遮光帘、遮光布帘、遮光麻草布帘、遮光柔丽丝布帘、隔热帘、太阳帘、遮阳帘。

The main job and contribution of this paper are as follows:Based on narrowband signal processing, we propose a new method for FH signal blind detection and blind parameter estimation. Firstly, compute the cross-correlation function of FH signals from multichannels, then we get the cross power spectral density matrixCSDM Secondly, select the hops of FH signals from the CSDM via processing and analyzing the CSDM, meanwhile reduce the influence coming from noise, fixed frequency signal and other interferences; Lastly, estimating the DOA of every hop and according to the DOA, we can separate the hops, get the number of FH signals and their parameters. Propose a new method for designing the threshold in FH signal detection. This method makes it easy to get the threshold by theoretic computing and it can extremely reduce the interference of non-FH signals.Based on broadband signal processing, we propose a new method for FH signal blind detection and blind parameter estimation. Firstly, get the DOA of the signals by wideband spatial spectrum estimation; secondly, separate the signals by spatial filtering using wideband beamformer; Lastly, we propose two methods for FH signal blind detection and blind parameter estimation, one is for several constant hop-rate FH signals whose dwell-time are different and another is for a single FH signal whose hop-rate is alterable.By employing spatial interpolation in broadband signal beamforming, it can reduce the number of antenna elements and corresponding RF modules, A/D converters, etc. It can also eliminate the mutual coupling between antenna elements while getting the narrower main beamwidth and lower sidelobe level.

本文的主要研究工作和贡献如下：●提出了一种基于窄带处理的FH信号盲检测和参数盲估计的实现方法，即首先求出多路信号之间的互相关，进而得到互功率谱密度矩阵，然后通过对CSDM进行对折处理来抑制噪声、定频信号及其他干扰的影响，并将所有属于FH信号的hop(每一跳的驻留时间在时频图上持续的线段)从CSDM中筛选出来，最后用阵列信号处理中的到达方向估计理论在频域中估计出各个hop的方向参数，利用方位信息完成FH信号分离并得到FH信号的数目及其各自的参数集；●提出了一种确定FH信号检测门限的策略，该策略不仅使得检测门限能够通过理论计算得到，而且还显著地抑制了非跳频信号的干扰，从而能有效地检测出FH信号；●提出了一种基于宽带处理的短波FH信号盲检测和参数盲估计的实现方法，即首先利用宽带空间谱测向技术得到接收信号的DOA，然后采用宽带波束形成技术对特定方向进行空间滤波，实现多个信号的分离，最后分别提出了两种FH信号的盲检测和参数盲估计方法，第一种方法适用于空间某个特定方向上存在着几个驻留时间不同的恒跳速FH信号和其他干扰信号的混合信号，第二种方法适用于空间某个特定方向上仅含一个可变跳速的FH信号和噪声的混合信号；●将空间插值的概念和宽带波束形成技术结合起来，提出了一种基于频域处理的宽带恒定束宽的波束形成方法。

Not a blind Persian blinds ride blind strike me blind the blind leading the blind blind to v.

就叫我不得好死瞎子给瞎子引路；外行指导外行；问道于盲看不见。。。；对。。。

So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。