带环的

The tunable photon broad band radio frequency phaser based on a silicon ring resonance cavity comprises a pumping signal light-generating system, a carrier wave light-restraining double-sideband generating system, a silicon ring resonance system and a measuring system; wherein, the silicon ring resonance system comprises a light coupling device and the silicon ring resonance cavity; the output of the light coupling device is connected with the input port of the silicon ring resonance cavity; wherein, the silicon ring resonance cavity is composed of a silicon annulet and a root of a straight waveguide; the air gap distance between the silicon annulet and the root of the straight waveguide is several ten nanometers or several hundred nanometers; the taking characteristic of the silicon ring resonance cavity is the characteristic of a seasonal reject trap; the transmission rate in the position of a resonance wavelength is equal to zero or is very close to zero.

本发明包括：泵浦信号光发生系统、载波抑制光双边带产生系统，硅基环形谐振腔系统，以及测量系统。所述硅基环形谐振腔系统包括一个光耦合器和一个硅基环形谐振腔，光耦合器的输出连接到硅基环形谐振腔的输入端口，其中：硅基环形谐振腔由一个硅基微环和一根直波导构成，硅基微环和一根直波导之间的空气隙间隔为几十至几百纳米，硅基环形谐振腔频谱特征是周期性的带阻滤波特性，在谐振波长处的透射率等于0或非常接近0。

Hebei Xinhui tape led the company's product is "Xinhui" brand conveyor belt-type conveyor belt of peace, including the width of the following types of specifications B1600mm ordinary cotton canvas conveyor belt, nylon conveyor belt, fire-retardant tape, heat-resistant conveyor belt , acid conveyor, oil conveyor belt, cold conveyor belt, as well as the ring-shaped belt, tread belt, the food belt, eleven major series such ashundreds of products.

河北鑫辉胶带公司的主导产品是"鑫辉"牌输送带和平型传送带，包括幅宽B1600mm以下各种规格的普通棉帆布输送带、尼龙输送带、阻燃带、耐热输送带、耐酸碱输送带、耐油输送带、耐寒输送带，以及环型带、花纹带、食品带、止水带等十一大系列上百种规格的产品。

The typical acute toxic symptom in earthworms was the tumescence of the segments with clitellum and seminal vesicles, especially the obvious tumescence even ulcerousness of clitellum.

蚯蚓的生殖系统对药物是最敏感的，蚯蚓急性中毒的典型症状是环带和贮精囊所在的节肿大，尤其环带肿大特别明显，严重者甚至溃烂。

In some special situation, Anti-static foot grounder will take place of anti-static wrist strap, and it is more economical than anti-static shoes.

防静电脚步环在某些需要机动性的场合里，防静电鞋或脚环成为同功能手腕带的替代品，而接地脚环又比防静电鞋更为经济。

The optimum conditions are: molar ratio of glycol to cyclohexanone is 1.6:1, the quantity of catalyst is equal to 0.25% of feed stocks, and the reaction time is 40 mm. H3PW12O40/MCM-48 is an excellent catalyst for synthesizing cyclohexanone ethylene ketal and its yield can reach over 80.63%.

实验表明：H3PW12O40/MCM-48是合成环己酮乙二醇缩酮的良好催化剂，在n：n＝1：1.6，催化剂用量为反应物料总质量的0.25%，环己烷为带水剂，反应时间40min的优化条件下，环己酮乙二醇缩酮的收率可达80.63%。

When the PEG block begins to crystallize, the PLLA phase is always partially solidified and the presence of the spherulitic microstructure of PLLA profoundly restricts its crystallization behavior, which results in that the overall crystallization process does not obey the Ozawa equation.

此外，不同降温速率下的结晶形貌研究结果表明，随着降温速率的增加，晶体经历了从环带球晶、环带和十字消光的混合球晶到典型的十字消光球晶的转变，并且球晶的尺寸也明显变小。

The results showed that the suitable condition for the reaction are as follows: benzaldehyde/1, 2-propylene molar ratio is 1:1.4, the mount of potassium dodecatungstocobaltate trihydrate (K5CoW12O403H2O) is 0.5g, the volume of cyclohexane is 9 mL, and reaction time is 70 min.

实验结果表明，杂多化合物K5CoW12O403H2O是合成环己酮l， 2-丙二醇缩酮的良好催化剂，在酮醇物质的量比为l：1.4、催化剂质量为0.5g、带水剂环己烷体积为9mL、反应时间为70min的最佳条件下，环己酮l， 2-丙二醇缩酮的收率最高可达94.2%。

Based on the analysis and investigations of dual-band microstrip annular ring slot antenna, a novel miniaturized dual-band annular ring slot antenna for WLAN applications is presented. It utilizes two rectangle notches to overcome the problem of resonant effects caused by the distance between inner and outer ring slots.

基于对微带双圆环缝隙天线的研究与分析，通过连接型矩形槽设计克服了内、外环距对谐振效果的影响，提出了一种应用于无线局域网通信的小型双频圆环缝隙天线，并且可以实现圆极化。

Moreover, a belt planishing mill setting is one of the major sectors of the belt cold rolling sets, in which a steel roll annealed is received in the device from the last course, and after planished a steel belt with certain extensibility and surface roughness is gained. The steel belt, after having planished, has eliminated its yielding platform, and it can improve its quality outstandingly to meet with the increasing demands in the market.

而板带平整机组是板带冷轧机组中重要的一环，该区域设备承接经退火之后的钢卷，经平整后，得到有一定延伸率和表面粗糙度的钢带，平整后的钢带消除了屈服平台，可显著提高板带的质量，从而满足市场日益增长的要求。

To solve the exsisting problems in the realization of the LFM/CW radar, the thesis presents a technique for dynamically measuring the LFM/CW signals, which can accomplish the dynamic measurements of FM linearity, FM bandwidth and FM slop of the transmitted signals of LFM/CW radars. This technique creates an effective and accurate means of judging the performance of LFMCW radars. The linearity-correction techniques presented in the thesis successfully make the linearity of the transmitted signals of an actual LFM/CW radar reduce from approximately 25% to 0. 1%(or r. m. s linearity of 0.04%), better than the best results (0.22%) obtained by foreign researchers with complex linearization closed-loop in the same kind of LFM/CW radars, according to the published literatures during the last decade. In order to improve the capability of the real-time processing and range-cells management of LFM/CW radars, the principle of equivalent mixing by lacking-sampling process of band-pass real signals is proposed based on the well-proved improvedversion of sampling theorem of band-pass real signals. This principle is used to configure the range-segments processing of the beat signals of an actual LFM/CW radar. The techniques of system-background interference suppression and the beat signal's dynamic range suppression are proposed, and are realized in an actual LFM/CW radar to demonstrate their effectiveness.

针对线性调频连续波雷达实现中急待解决的技术问题，文中提出并验证了线性调频连续波信号的综合动态测试技术，可以完成对线性调频连续波雷达发射信号的扫频线性度、扫频带宽和扫频斜率的综合动态测试，为衡量实际线性调频连续波雷达的系统性能创立了精确有效的测试手段；文中建立的非实时闭环动态校正技术使一部实际的线性调频连续波雷达的发射信号（时带积3×10〓）的扫频线性度从25%改善为0.1%（方均根线性度0.04%），优于国外已公布的80年代同类雷达中采用复杂的实时闭环动态校正环路所获得的实际结果（0.22%）；为了改善线性调频连续波雷达的实时性和分辨单元数处理能力，文中发展完善了实带通信号的采样定理并给予了严格证明，并在此基础上提出了欠采样等效混频原理，将其应用于实际线性调频连续波雷达的距离分段处理中；针对线性调频连续波雷达中系统背景干扰和回波动态范围问题，创立了系统背景综合抑制技术和频域动态范围压缩技术，并将它应用于实孔线性调频连续波雷达系统中，显示出它们的有效性。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失