查询词典 enveloping ring

The results of calculation will be fundmentally consistent with the experimental values.In addition, we calculated dibenzene chromium and its derivatives, ferroceneand its derivatives. The former had higher symmetry. We studied the substituenteffects by calculating their NMR spectra. The results show that: when we add asubstitute group on one ring of dibenzene chromium, the substitute group will affecttwo benzene rings. The effect is similar to the effect of branched alkanes, namely:the effect on neighbouring groups has transmissibility. Furthermore, the nearer theneighbouring group is, the stronger the effect is. This effect is observed not only onthe substituted ring, but also on the unsubstituted ring.

此外，我们重点计算了二苯铬及其衍生物和二茂铁及其衍生物的核磁共振谱，其中二苯铬及其衍生物选择的是对称性较好的体系，通过计算其核磁共振四川师范大学硕士学位论文谱，探讨其取代基效应，结果表明：在二苯铬的一个环上引入取代基后，取代基对两个苯环的影响，类似于支链院烃引入取代基后的影响：即对邻近基团的影响有传递性，并且对离得近的作用强，对离得远的作用弱，这种作用不仅体现在连有取代基的环上，也体现在没有带取代基的环上。

The invention is characterized in that: the ultraviolet flame sensor comprises a uviol piece, a meshed anode which is arranged on the uviol piece, a cathode substrate glass piece, a photocathode which is arranged on the cathode substrate glass piece, a glass ring which is arranged between the cathode and the anode, a vacuum orifice which is arranged on the glass ring, a plastic packaged base which is arranged under the cathode substrate glass piece, a cathode and an anode lead which are adhered to the plastic packaged base and are respectively connected with the cathode and the anode, and a plastic casing which is arranged around the plastic packaged base, the glass ring and the glass piece.

其特征在于，其中包括：透紫玻璃片；网状阳极，该阳极层制作在透紫玻璃片上；阴极衬底玻璃片；光电阴极，该层制作在阴极衬底玻璃片上面；玻璃环，该玻璃环制作在阴极和阳极中间；抽真空口，该抽真空口制作在玻璃环上；塑封底座，该底座制作在阴极衬底玻璃片下面；阴极和阳极引出线，该引出线粘接在塑封底座上，分别与阴极和阳极相连接；塑料外壳，该外壳制作在塑封底座，玻璃环和玻璃片周围。

High correlation between tree ring-width dependable chronologies at different elevations of these sampling sites shows that the high-frequency changes among tree ring chronologies are consistent, but there is some diversity in the low-frequency changes of tree ring chronology.

不同海拔树轮宽度可靠年表间高频变化一致， 10 a滑动的高生长和低生长的不一致则反映了低频变化的差异。

According to the method of determining the safe thickness of arch ring which is reinforced by adding a new arch ring,this paper proposes a method for determining the thickness of inner arch ring under the arch bridge.

参照拱圈上增设拱圈叠合受力加固法新设拱圈厚度的确定方法，对拱圈下内套拱圈厚度的确定提出设想，对拱圈安全厚度提出建议和确定方法。

Packing ring preparations 1 braided At the appropriate size of the axis of winding packing or packing ring using calibrated cutting machine; upon request, packing neatly cut into the butt, or miter (30-45 degrees), a cut of a ring, and use shaft or stem test size is appropriate.

编织盘根在适当尺寸的轴上缠绕盘根，或使用校准过的盘根环切割机；根据要求干净利落地切割盘根成对接或斜接（30-45度），一次切一个环，并用轴或阀杆检验尺寸是否合适。

A half-Keystone cross-section top- ring with improved carbon scavenging abilities is used, and the groove for the top ring is made more durable with the adoption of a cooled ring carrier that increases the groove's cooling capability.

当与对压缩机的一侧，从而降低了刀片和之间的压缩机房屋清拆封严相结合，提供卓越的涡轮增压器，这些反应几乎所有的发动机转速。

My agent is currently the main product has: Japan Yuken of the vane pump, variable piston pumps, proportional valves, direction valves Switzerland Wandfluh Various proportional valve, direction valves, Cartridge Valves, micro - valves, special purpose valves Taiwan DINGZING of high-quality polyurethane oil seal, dust-laden Sweden CEJN vibration-resistant pressure gauges, various Express connectors, UHP Products USA PARKER of hose , joints, pipe, card sets of joints and seals Italian CARCO the large, heavy-duty hydraulic and rotary seal (size 10 ~ 2000mm) Italian Walvoil multi-way valves and control components Italian Marzocchi high-pressure gear pump and high pressure gear motors Italian intermot motors JAPAN Sumitomo QT Internal Gear Pump, Pressure Switch JAPAN ACT Italian combination of letters POLYPAC rubber, covered with dust, Georgia to circle Sri Lanka special closure, wearable ring Japan NOK sealed polyurethane high temperature oil seal, seal ERIS Netherlands, Germany COG various O-ring on the Japanese Osaka Hydraulic Sealing Products Germany B + S: DAS, DSM portfolio of sealing, a variety of high-pressure sealing rubber cloth Italian ATS: cell to circle sturt closure,dust ring, rotated grid to love circle Shenzhen Lihua Industrial Co., Ltd. Chongqing Office has officially set up to welcome friends from all walks of life call consultative letter.

我公司目前代理的主要产品有：◆日本Yuken的叶片泵、变量柱塞泵、比例阀、方向阀◆瑞士Wandfluh各种比例阀、方向阀、插装阀、微型阀、特殊用途阀◆台湾DINGZING的高品质聚氨脂油封，尘封◆瑞典CEJN的耐振压力表、各种快速接头、超高压产品◆美国PARKER的胶管、接头、钢管、卡套接头及密封件◆意大利CARCO的大型、重载液压及旋转密封（尺寸 10～2000mm）◆意大利Walvoil多路阀及控制元件◆意大利Marzocchi高压齿轮泵和高压齿轮马达◆意大利intermot马达◆日本SumitomoQT内啮合齿轮泵，日本ACT压力开关◆意大利POLYPAC橡胶组合封、尘封、格来圈、斯特封、耐磨环◆日本NOK密封、耐高温聚氨脂油封，荷兰ERIS骨架油封，德国COG各种O型圈◆日本坂上液压密封产品◆德国B+S：DAS、DSM组合密封、各种夹布橡胶高压密封◆意大利ATS：格来圈、斯特封、特康防尘圈、旋转格来圈深圳爱力华实业有限公司重庆办事处已正式成立，欢迎各界朋友们来电来函咨询。

Linked with climb ring, triangle ring and ring is made of high-quality carbon steel plate by stamping, copper-coated Ni-Cr layer.safety belt is treated by high temperature which made it harder and more safety.

所配攀登挂钩、三角环、圆环等均用优质中碳钢钢板冲压而成，表面涂镀铜镍铬层。

Analysis of the main reasons is because of fatigue caused by factors such as the copper support ring was broken and the piston rod in the hydraulic cylinder telescopic frequently, the fracture茬口constantly scraping the inner wall hydraulic cylinder mill will pick缸壁, resulting in injury China, so that the speed of decline in hydraulic cylinder; job with the passage of time, strain and缸壁sealing ring, wear ring injuries are increasing, with China to increase the volume, and finally resulted in a serious decline in the speed of hydraulic cylinders.

分析主要原因是，由于疲劳等因素造成的铜质支撑环断裂，在液压缸活塞杆的频繁伸缩中，断裂茬口不断刮磨液压缸内壁，将缸壁拉毛、拉伤而导致内泄，使液压缸速度下降；随着工作时间的推移，缸壁拉伤和密封环、耐磨环的损伤都不断加重，内泄量加大，最后造成液压缸速度严重下降。

This ring will not be a three stone ring, a diamond anniversary band or a diamond engagement ring.

这戒指不会有三个石环、钻石或乐队周年钻石戒指接触。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？