查询词典 tubes

Company dedicated to the research, development of a variety of basic materials for thin-walled stainless steel tube of the compound and has a number of National Invention Patent, the modernization of the factory has a 22 stainless steel tubes and stainless steel lined composite steel pipe production lines, to complete the 5000 tons of stainless steel tubes and 30,000 tons of stainless steel lined composite steel pipe production capacity.

公司致力于研究，开发各种以薄壁不锈钢为基础材料的复合钢管，并拥有多项国家发明专利，厂区拥有22条现代化不锈钢管和内衬不锈钢复合钢管生产线，能完成5000吨的不锈钢管和3万吨内衬不锈钢复合钢管的生产能力。

Mastercycler Gradient — Compact thermal cycler features a 96-position universal block for 96x0.2mL tubes, 77x0.5mL tubes, or one 96-well plate.

Eppendorf梯度热循环仪Mastercycler Gradient，体积小，但能容纳96个0.2毫升的试管，77个0.5毫升试管或一个96孔板。

The conditions of optimal heat transfer of the cyclonic current tubes are obtained on the basis of the cold experiment of cyclonic current tubes for film deoxidizer and the analysis of the test result.

根据膜式除氧器旋流管的冷态试验及对试验结果的分析，得出了旋流管处于最佳传热工况的条件。

In the single crystal of C60 with a FCC structure,positron mainly appears outside the C60 molecule.The main annihilation space is the interspace between molecules.The calculated positron bulk lifetime in C60 is 352ps, which agrees with experiment value of 356ps in literature.In carbon nanotube bundles with different dimeters,as the diameter of carbon nanotubes increases,the main space where positron appears changes from the interspace of carbon tubes to the space inside carbon tubes,the radio between positron annihilation with valence eletrons and core eletrons becomes larger,the positron bulk lifetime in carbon nanotube increase rapidly first and come to be a constant at the end.The calculated positron lifetime of carbon nanotube with a dimeter of 0.8～1.6ns is 332～470ps,which agrees with the experiment value of 394ps.Positron annihilation has been studied in widly used compound semiconductors.

计算结果表明：在片层结构的石墨晶体中，正电子主要在石墨层间的空隙中湮没，计算出的石墨中的正电子寿命为208 pS，与文献中的实验结果215 ps符合很好；在金刚石单晶中，正电子主要在碳原子之间的空隙中存在并发生湮没，计算出的金刚石中的正电子寿命为115 ps，文献中的实验结果110 ps左右符合；在面心立方结构的C60晶体中，正电子主要在C60分子球壳内外侧及分子之间存在，C60球形分子中心正电子分布很少，正电子的湮没区域集中在C60分子之间的空隙区域，计算出的C60中的正电子寿命为352 ps与文献中的实验结果356ps相符合；对于不同管径碳米管束中的正电子分布，随着碳纳米管直径的增加，碳纳米管束中的正电子由主要在碳纳米管管间的区域出现转变为主要在碳纳米管管内中心的区域出现：碳纳米管束中的正电子与碳原子的价电子的湮没概率变得越来越大，与核心电子的湮没概率变得越来越小；碳纳米管束中正电子的湮没寿命先迅速增大，而后趋于一定值。

The results indicate that the characters of twisted tubes are better than round tubes, and the heat transfer coefficient and power characters are increased with the diminishment of geometry sizes and the increase of fluid parameters.

实验结果表明，扭曲管比圆管的性能好，螺距和管径越小、水喷淋密度和风速越大，传热系数越高，但流动阻力同时增大，存在合适的螺距、管径、水喷淋密度和风速使蒸发式冷凝器综合性能最佳。

The utility model relates to a disposable infusion device which are used for the pharmaceutical compatibility in the intravenous infusion, belonging to a medical apparatus, comprising a medicine-drawing needle, an exhaust tube, a flow quantity card, a drip cup for medicine drawing, two two-way tubes, three plastic tubes and an infusion needle.

一次性使用加药器是静脉输液药物配伍时用的一种医疗器械。主要是由吸药针头、排气管、流量卡、吸药滴壶、两通管、塑料管和加药针头组成。

This is accomplished by the use of full-length eductor tubes and gooseneck eductor tubes see Fig.

这是通过使用全长排放管和鹅颈排放管（见图1）。

This is accomplish ed by the use of full-length eductor tubes and gooseneck eductor tubes

这是通过使用全长排放管和鹅颈排放管。

Floral tubes smooth walled or 6-12(-14)-ribbed; ribs broad and flat or sharply ridged, without undulate wings; floral tubes glabrous or pubescent; epicalyx present or absent

花被管壁平滑或6-12(-14)棱；锐棱宽和平的或被使成脊状，没有波状的翅；花被管无毛或被短柔毛；副萼存在或无 4

Floral tubes prominently undulate-winged from sinus of sepals, wings attenuate on pedicellate floral base; floral tubes densely white pubescent; epicalyx absent.

在有花梗身上从萼片，翅渐狭的凹缺波状具翅的显著的花被管花的基部；浓密的花被管白色短柔毛；副萼缺席。 3 L。 villosa 毛紫薇

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。