上管

An S-band 45 MW pulsed klystron is developed in Institute of High Energy Physics.

国产45 MW速调管是在原国产30 MW HK-1型速调管的基础上改进和发展起来的，其聚焦磁场设计也是参照30 MW速调管聚焦磁场设计并在其基础上加工改造完成。

The present invention is process of separating and assembling metallic single wall carbon nanotube and semiconductive single wall carbon nanotube synchronously. The process includes the following steps: photoetching silica substrate to prepare Au electrode, cutting intervals in the electrode with focused ion beam, soaking the electrode in DMF solution of single wall carbon nanotube, and applying electric field of 2-8 V magnitude and 1-10 Hz frequency.

本发明的目的在于提供一种金属性和半导体性单壁碳纳米管的同步分离与组装方法，该金属性和半导体性单壁碳纳米管的同步分离与组装方法包括如下步骤：通过常规光刻在含二氧化硅的衬底上制备金电极的步骤；利用聚焦离子束在电极上刻出若干个间隙的步骤；将上述电极浸入到单壁碳纳米管的DMF溶液的步骤；施加大小为2～8V、频率为1～10Hz的电场的步骤。

In order to settle the problem of adjusting the surface level of liquid in U type pipe, the author improves the liquid piezometer. The scoop type pipe is used instead of the U type pipe, and is fixed on a board with scale. And the detection head is fixed on the rail which can slide up and down.

为了解决液体压强计中U型管液面难以调平的问题，对该装置进行了改进，将U型管改为勺型管，并固定在有刻度的展示板上，同时将探头固定在可上下滑动的横杆上，使其可以沿着有刻度的金属杆移动。

When the saturated vapor of pure R11 or R113 was condensed on the PF tubes under free convection conditions, the HTCs (based on the outside area of the base tube, the same be1ow) were 14 to 20 times those of the smooth tube because the condensate surface tension made the condensate film on fin surfaces thin and the rough saw-toothed fin surfaces disturbed the boundary layer in the condeneate film.

纯R11、R113的饱和蒸气在大空间花瓣形翅片管上冷凝时，由于凝液的表面张力将翅片表面上的液膜拉薄以及粗糙的锯齿形的翅片表面扰乱了凝液膜内的流动边界层，传热膜系数（以坯管外表面积为基准，下同）是光滑管的14—20倍。

Awl gas lock is angry implement next noodles or vermicelli made from bean or sweet potato starch that can be used at fine pink segregator are in charge of or the canal answering pink of meal segregator and

锥气锁气器可用于细粉分化器的下粉管或者粗粉分化器的回粉管及P灭尘器落灰管上，请求笔直地装置，如通道靠斜的，则其末段应作完笔直的，锁气器就结在这一些笔直管上。

The structure shown in the figure : The governing body received direct or roller drying cylinder, as the main components of the rotation; After finishing the outside of the sphere, Bottom Cover and soak spherical carbon graphite seal ring joint seal reliable seal friction deputy, Sealing ring in the spherical shell of its annular space sliding, in addition to oil-free bearings and with the close cooperation of Shell, Rotating connector so that the free support, and therefore do not require a high level of accuracy installed; Spherical seal ring wear, Spring means of pressure at any time in advance to receive compensation, compensation for the shell slowly moved backward, accessible through the tube outside the inscription on the line to observe the seals wear; When steam, Oil flows through the media or other spherical sealing ring and oil-free bearings, the formation of thin liquid film, sealing and lubrication, thereby reducing friction and wear, extending the service life.

其结构如图所示：外管体直接接到辊子或烘筒上，为主要的旋转部件；经过精加工的外管本球面、底盖和浸泡碳石墨球面密封环共同组成密封可靠的动密封磨擦副，球面密封环在其壳体内的环形空间中滑动，加之无油轴承与壳体的密切配合，使旋转接头自由支撑，故对装机精度要求不高；球面密封环磨损后，借助于弹簧的预压力随时得到补偿，补偿时壳体缓缓向后移动，并可通过外管体上的刻线观察到密封件的磨损程度；当蒸汽、油或其它介质流经球面密封环和无油轴承时，形成一层很薄的液膜，提供密封和润滑，从而减轻了摩擦和磨损，延长了使用寿命。

LC with four ports: one 10-mm umbilical port, one 10-mm subxiphoid port, and two 5-mm port in the right subcostal position. results There were significant difference between the two groups in terms of resumption of food intake, the duration of analgesic requirement , analgesic consumption, the time of incision pain, postoperative stay and cosmetic results.

结果 与LC组相比MLC组在进食时间，镇痛剂应用时间，应用剂量，切口疼痛时间，术后住院时间，美学满意度上均具有显著性差别，而在手术时间，术中出血量，胆囊破裂有无，腹腔冲洗有无，引流管放置，手术中转及引流管拔管时间上均无显著性差别。

Multiwall carbon nanotubes attached on conventional AFM silicon tip using an optical microscope with two independent translation tables. Purified nanotubes are aligned on the conductive tape, and attached on the AFM tip.

首先将碳纳米管粘附在导电的胶带上，然后用涂胶的针尖与其接触将碳纳米管粘附到针尖上，最后运用电蚀的方法优化碳纳米管针尖的长度，以达到高分辨率的要求。

①The shape of the tubular openings has a corelation with both the arrangement of the dentinal tubules and their opening sites on the calcospherites.

①牙本质小管口的形态与牙本质小管的走向及其在钙球上的开口的形态与牙本质小管的走向及其在钙球上的开口部位有相关关系。

In group 35mg/kg, the karyopyknosis of the tubular epithelial cells of cortical increased. The structure of epithelium disappeared, that of glomcrulus disorganized and medulla were involved. In group 25 mg/kg and 30 mg/kg, severity of pathological changes were between that of group 20 mg/kg and group 35 mg/kg.

35mg/kg染毒组皮质部小管上皮细胞细胞核固缩增多，上皮细胞结构消失，少数肾小球结构紊乱，髓质部小管细胞核固缩，管腔消失。25mg/kg和30mg/kg染毒组病理损伤程度介于上述两组之间。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。