The invention provides a 3G base station signal digital extending method and device that characterized in that: it includes coupler, central unit CU, remote unit RU and antenna feed line subsystem, the down-board radio frequency signal of base station is coupled to the input end of CU via coupler, the output end of CU end is connected with the input end of RU end via optic fiber, the output end of the RU end is emitted by the antenna feed line subsystem via the emission antenna mouth; Up-board chain RU receives the two path up-board radio frequency signal from antenna and main receiving antenna, and sends to the CU end via fiber, and coupled by coupler for the base station; the invention realizes digital big cavity remote overlay, the machine room of base station is decreased greatly, 3G network can be built quickly and flexibly, the capital expenditure and operating cost can be decreased effectively.
本发明提供一种3G基站信号数字化延伸方法与装置，其特征在于：由耦合器、中心单元CU、远程单元RU和天馈线子系统组成，基站的下行射频信号经耦合器耦合到CU端输入端，CU端的输出端通过光纤连接到RU端输入端，RU端的输出端通过发射天线口由天馈子系统发射出去；上行链路RU分别接收来自分集接收天线和主收发天线的两路上行射频信号，经光纤送到CU端，通过耦合器耦合给基站接收；本发明通过光纤实现了基站射频信号的数字化大容量远程覆盖，而且可大量减少基站站点机房，快速灵活构建3G网络，有效降低运营商资本支出和运营成本。
If the upper impeller 0 ° as a starting point, then the impeller rotating at 180 ° before the small cavity volume by the small and large, and with the suction-side surface of the same mouth, when the gases are inhaled, when the suction end of the small cavity isolated from the mouth and inhale; when the impeller continues to rotate, the small chamber by a small change so that the gas is compressed; After a small cavity connected with the exhaust port, the gas will be discharged outside the pump.
如果以叶轮的上部0°为起点，那么叶轮在旋转前180°时小腔的容积由小变大，且与端面上的吸气口相通，此时气体被吸入，当吸气终了时小腔则与吸气口隔绝；当叶轮继续旋转时，小腔由大变小，使气体被压缩；当小腔与排气口相通时，气体便被排出泵外。
Injection, while simultaneously, a valve at the end of cavity fill opensa path from the main cavity into a secondary or overflow cavity. The
模内的另一个针开启开始注水，与此同时设置在填充尾端的阀门开启形成一个由型腔通往溢流空腔的通道。
A separate pin then opens in the mold for water injection, while simultaneously, a valve at the end of cavity fill opens a path from the main cavity into a secondary or overflow cavity.
模内的另一个针开启开始注水，与此同时设置在填充尾端的阀门开启形成一个由型腔通往溢流空腔的通道。
Vice-valve installed in the main valve side or both sides of the flap valve and the screw connection, the normal flow of media, the valve is opened, the medium pressure valve is opened by the Deputy, the medium through the valve hole into the main Double Door Check Valves, Air Cushion valve, Vice export side, so that the main valve inlet end of relief, the main valve valve flap to open, the main valve before and after the pressure balance; medium counter-current, the main valve valve valve in the counterflow medium under the action of fast closed, and the deputy valve body upper part of the buffer tank, the Deputy valve valve cap screwed the upper part of his body covered with a small hole, the Deputy valve valve valve with the piston rod sets have a certain air gap between the piston and the buffer cylinder with rubber O-ring seal, the piston and the valve flap between the lower-dimensional seal; as Vice-valve With the main valve valve valve valve valve was closed, because of Vice-valve valve cover the role of holes, the medium gradually flows through the small hole on the Vice-valve cylinder cushion cavity, part of the media, through the Deputy valve valve flap and the gap between the piston rod reflux, it is slow, Vice valve piston closed.
副阀安 装在主阀阀瓣下侧或两侧且用螺纹联接，介质正常流动阀门开启时，介质压力将副阀打开，介质通过副阀小孔流入主阀出口端，使主阀进水口端卸压，主阀阀瓣开启，主阀前后压力趋于平衡；介质逆流时，主阀阀瓣在逆流介质作用下快速关闭，而副阀阀体上部为缓冲缸，副阀阀盖旋入阀体上部其盖上有一小孔，副阀阀瓣与其活塞杆空套有一定间隙，活塞与缓冲缸之间采用O型橡胶圈密封，活塞下部与阀瓣之间为平面密封；当副阀阀瓣随主阀阀瓣关闭而关闭时，因副阀阀盖小孔的作用，介质通过小孔逐渐流入副阀缓冲缸上腔体，一部分介质通过副阀阀瓣与活塞杆之间的间隙倒流，故副阀活塞是缓慢关闭的。
The cut-off valve with pilot valve without hand wheel, stem and lift nut inside will guide block and guide slot Butterfly Valves to guide sleeve, the disc-shaped disc to disc type bowl shape, and holes in the bottom of the flap valve to open, the valve cover of the original valve stem hole to hole diversion, because of increased pressure ring, ring, and the valve flap to class mortar, so that the flow passage separated the upper chamber cavity, external cavity, cavity, in the cavity and The external cavity increases with draft tube and stainless steel manual ball valve, flap valve in the cover plate and the center of the end of installing the spring, the upper flap valve install compression seal of the pressure ring, outside the cavity of the wall to open a Drainage holes.
带先导球阀的截止阀无手轮、阀杆和内升降螺母，将导向块与导向槽改为导向套，将盘形阀瓣改为类钵体形阀瓣，并在底部开阀瓣孔，电动蝶阀将阀盖原阀杆孔改为导流孔，因增加压环、密封圈和将阀瓣改为类钵体，使上通流腔分隔为上腔、外腔、内腔，在上腔与外腔的外部加设有导流管与不锈钢手动球阀，在盖板与阀瓣底的中心部加设弹簧，阀瓣上部加设压紧密封圈的压环，在外腔的壁上开有放水孔。
Failure has removed Frederick found the steering cylinder, piston rod end nut falling off cause the piston to shift cylinder cavity and there is no bar under the same cavity, can not afford to set up the pressure, causing a sudden lapse motion.
拆检有故障的转向缸时发现，活塞杆端螺母脱落，导致活塞脱落，使转向缸有杆腔和无杆腔相通，建立不起压力，致使动作突然失效。
When a quarter-wave plate is inserted in the cavity, with the end surface of the quarter-wave plate normal to the laser beam, the laser magnitude of the longitudinal mode splitting is just equal to one half of the longitudinal mode interval; When the other same quarter-wave plate is placed in the cavity in the same manner as before, the splitting magnitude is tunable over a whole range of one longitudinal mode intervel by means of the angle between the fast axes of both quarter-wave plates changed in a range of 0~90 degrees, and the oscillating output of tunable dual-frequency laser is realized.
当在腔中垂直光线插入一片λ/4波片时，得到激光纵模分裂量为纵模间隔的一半；当在腔中垂直光线放置另一片λ/4波片时，通过它们快轴(或西安理工大学硕士学位论文慢轴)之间的夹角在O一90变化，得到激光纵模分裂量在一个纵模间隔范围内调谐，实现了可调谐的双频激光振荡输出。
Not long ago, the American Medical Association has made a very interesting experiment: a pen to insert human nasal cavity, insert the other end of the pen in ice water.
前不久，美国医学会做了一个很有趣的实验：将一支笔插入人的鼻腔，笔的另一端插入冰水中。
The sleeve, which is a sliding fit in the cavity insert and on the core pin, is fitted at its rear end to the ejector assembly.
这个顶管装在顶料组合的后端，和型腔镶块以及型芯滑配。
The measuring unit includes one heat block, one cooling block, and one sleeve. The facing end of the heat block and cooling block has one loaded plane which forms one loaded cavity with the sleeve in which the heat block and cooling block can be relative move.
所述量测部包括一加热块、一冷却块及一套筒，所述加热块及冷却块相面对的一端分别具有一承载平面，所述承载平面与所述套筒构成一承载腔，且所述加热块与冷却块可于所述套筒内相对移动。
Water is injected into the mold before the end of melt injection, pushing the material to the end of the cavity for final packing.
水是在注射熔融塑料结束之前注入的，推着塑料到填满，准备保压。
In the all fiber cavity composed of a fiber Bragg grating and the Fresnel reflection of gain fiber end, the Yb〓-doped double-clad fiber laser is performed.
采用光纤光栅和增益光纤端面反射构成谐振腔，实现了双包层激光器谐振腔的全光纤化。
Methods Twelve patients with liver carcinoma were received tracheal cannula to control respiration during HIFU treatment. In order to decrease the influence of liver movement during HIFU treatment, patients are controlled to stop respiration temporarily. Five patients of them whose tumor lesions located near the diaphragm were infused saline into right pleural cavity. The lung tissue was pushed away from the therapeutic passage to expose the tumor in the distal end of liver diaphragm.
12例肝肿瘤患者在HIFU治疗过程中采用气管或双支气管插管法控制呼吸，根据HIFU治疗需要，通过暂时阻断呼吸，以消除肝脏运动对HIFU治疗的影响；其中对 5例病灶位于肝膈顶部的患者，同时在右侧胸膜腔内注入生理盐水，推开治疗入路的肺组织，显露并治疗肝膈顶部肿瘤。
In 1 week after end of treatment, all were sacrificed by air embolism, and the knee joint cavity was exposed.
治疗结束1周后，分别空气栓塞处死，显露膝关节腔。
In the uterus to contract after delivery of placenta, umbilical Palace at the end of flat or slightly below, after the decline in the uterus, a day to about 1~2 cm, 10~14 day retreat into the pelvic cavity, 6 to 8 weeks returned to normal.
在胎盘娩出后子宫收缩，宫底平脐或稍下方，以后子宫下降，每日约1~2厘米，10~14日退入盆腔，6~8周恢复正常。
The large needles still attached to the tape are introduced into the abdomen through one of the exposed lateral trocar sites by successively grasping each end of the suture several centimeters from the swedge point and then directing the needles through the abdominal wall and then into the peritoneal cavity under direct vision.
在距渐缩点数厘米处逐个连续抓住缝线的每一端，然后在直视下将仍然连接于带子的大针经一个暴露于外侧的套管针孔穿过腹壁进入腹膜腔。
The cut end was placed with the anvil and made a purse - string suture, then it was put back into the peritoneal cavity.
腹腔镜乙状结肠代阴道成形术是完全可行的，较开腹手术的效果更理想。
Another form of applicator is equipped with a plunger which can be operated to empty the internal cavity of the tube through the distal end opening.
另一种形式的给药器上装有活塞，可以通过活塞从给药器管末端的开口处清空内膛。
The utility model is characterized in that an inlet pipe is connected with the upper part of the housing, the front part of the housing reaches out two bases which are connected with a rotary shaft whose interior is a cavity, the rotary shaft is connected with a cannon barrel which is outside the bases, the cavity of the cannon barrel is communicated with that of the rotary shaft, the lower part of the housing is provided with a motor which is connected with a end of the rotary shaft through a strap, which is capable of causing the cannon barrel to rotate and the rear part of the housing is also provided with a motor which is connected with a shaft sleeve positioned at the outer wall of the inlet pipe through a strap, which is capable of causing the housing to rotate.
其特征在于：在壳体上部连有一个进水管；在其前部伸出有两个基座，基座连接一个内部为空腔的转轴，转轴上连接一个炮管，炮管支出基座外，炮管内的空腔与转轴内部的空腔相通；壳体的下部设有电机，电机通过皮带与转轴的一端连接，能够带动炮管转动；壳体的后部设有电机，电机通过皮带与进水管外壁的轴套连接，能够带动壳体转动。