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螺旋管

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Some new organizational patterns of microtubules (that have not been described before) were observed during microsporogenesis, including the existence of a broad band of perinuclear microtubules at the diakinesis stage of development.

主要包括:(1)在细线期,从核膜向胞质衍射的微管呈螺旋状,显示核具旋转功能;(2 )在偶线期,微管的分布呈极性分布现象;(3)在终变期,核被一组微管形成的宽带围绕着。

In Chapter Ⅰ, based on the helical and rotational symmetries of nanotubes we study the energy dispersion relations and electronic wave functions.

第一章,基于碳管的螺旋和旋转对称性,研究了碳管的能带结构,得到了碳管的能量色散关系及电子波函数。

Stainless steel lined composite steel pipe is a common carbon steel pipe for the substrate to thin-walled stainless steel for the lining, the use of double-helical rolling temperature composite technology, so that the base pipe and liner pipe closely integrated, composite pipe has the best condition.

内衬不锈钢复合钢管是以普通碳钢管为基材,以薄壁不锈钢为内衬,利用双螺旋温滚压复合技术,使基管与衬管紧密结合,复合钢管呈现最佳状态。

Yuxing is assembled with three Taiwan-imported production lines of auto spiral paper tubes, one unit of paper tube hectograph printer, one unit of copperplate rotating printer, a set of improved polishing, cutting and material quality testers, and a complete suit of paper jar packaging machinery, fully meeting customers' requirements for product quality.

中山市裕兴纸管厂拥有三条台湾引进的自动螺旋纸管生产线,为生产纸管配套的胶板及铜板轮转式印刷机各一台。磨光、分切及材料质量检测设备完善,还拥有全套生产纸罐包装机械设备,可完全满足各客户的产品质量要求。

Methods Retrospective analysis of 120 cases with multi-slice abdominal CT scanning were randomly and equally divided into experimental group and control groups, which group was 60 cases, respectively using automatic tube current modulation techniques and constant tube current in abdominal CT examination, the statistics were weighted CT dose index, dose-length product and effective milliampere seconds to compare image noise characteristics and the details show results.

回顾性分析我院腹部多层螺旋CT检查120例,随机分为实验组与对照组各60例,分别采用自动管电流调制技术和固定管电流技术进行腹部CT检查,分别统计CT剂量权重指数、剂量长度乘积及有效管电量,并对图像噪声特性、细节显示结果进行比较。

Also, we can find that the diameter of carbon nanotubes affects the structure of Na nanowire obviously. In the carbon nanotube (4,4), the Na nanowire is monatomic linear strcture, while it is of helicity and larger diameter.

且碳纳米管的直径对纳米线的直径及结构有明显的影响,碳纳米管(4,4)中得到的纳米线为单原子排列的直线结构,而碳纳米管(6,6)中得到的纳米线则为直径较大的、带有一定螺旋性的线性结构。

Perianth usually with 1 petaloid whorl (in Saruma with 2 whorls: outer one sepaloid, inner one petaloid), mostly connate into distinct tube, cylindric to campanulate or subglobose; limb rotate, urceolate, cylindric, or ligulate, 1-3-lobed; lobes valvate.

花被通常形成管状一轮(在马蹄香属里有花被2轮:外部一个萼片状,内部一个花瓣状),大部分合生成显著的管,圆筒状钟形的或近球形;花被管螺旋状,瓶形,圆筒状,或者舌状,1-3 分裂;裂片镊合状排列。

Besides the normal shape of myelin figures, single, double or even super helixes were found when the electrolyte concentration increased.

随着电解质浓度的增加,除通常的囊管结构外,还出现了单螺旋、双螺旋甚至超螺旋的结构。

Our product is a titanium , sparse noble metal material such as nickel, Mu , tantalum , zirconium processes; The tube , stick , silk , belt , board , foil , net , cake are encircled by reaching alloy products; Reaction equipment (500 L reaction boilers , titanium steel compound reaction boilers , titanium outside plate manage the warmup reaction boiler , the nickel steel compound reaction boiler); Heat exchanger (the titanium enumerates a pipe heat exchanger , titanium plate-type heat exchanger , the nickel heat exchanger , titanium helix plate-type heat exchanger); Compound board (titanium steel compound board , titanium copper compound board , titanium aluminium compound board finished product); The accessory and the heater titanium net are blue , the titanium flange , titanium nut titanium filter , titanium pump , titanium plate manage , the positive electrode , titanium centrifugal machine , titanium heater , various mistake are labeled with equipment and the accessory.

我们的产品是钛、镍、钼、钽、锆等稀贵金属材料加工;管、棒、丝、带、板、箔、网、饼环及合金制品;反应设备(500L反应釜、钛钢复合反应釜、钛外盘管加热反应釜、镍钢复合反应锅);换热器(钛列管式换热器、钛板式换热器、镍换热器、钛螺旋板式换热器);复合板(钛钢复合板、钛铜复合板、钛铝复合板成品);配件及加热器(钛网蓝、钛法兰、钛螺母钛过滤器、钛泵、钛盘管、阳极、钛离心机、钛加热器、各种非标设备及配件。

Welded pipe unit: The stainless steel welded pipe unit, the cold bending formation series welded pipe unit, the high frequency welded pipe unit, the pot galvanize unit, cut the butt welding machine, the spiral welded pipe unit and the heavy-caliber straight seam bury the arc-welded pipe unit and so on the complete set of equipment and so on;..

焊管机组:不锈钢焊管机组、冷弯成型系列焊管机组、高频焊管机组、热镀锌机组、剪切对焊机、螺旋焊管机组及大口径直缝埋弧焊管机组等成套设备等;。。

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I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像,后来回台湾,甚至去年在北京,居然也四处看见她的海报,才惊讶她的魅力之大。

Ah may dee:You are chinese living in a democratic country.

你是居住在民主国家的中国人吧。