查询词典 tubes

By direct numerical simulation of Navier-Stokes equations we investigate the three-dimensional evolution of a mixing layer, the three-dimensional merger of two parallel vortex tubes and reconnection of two antiparallel vortex tubes in the thesis.

本文用拟谱方法求解Navier-Stokes方程，对小扰动下平面混合层随时间的演化、同向平行涡管的三维合并和反向平行涡管的重联进行了直接数值模拟。

Benda Plastic Manufacturer of Nanhai,Foshan City,Guangdong Province,established in 1990 and later moved to Nanhai district,is a large enterprise specializhing in manfacture of plastic tubes,rods,ball valves and pipings,Our main end products include PTFE,PVC,PP,PE,Nylon and ABS tubes,valves and pipings and rods in more than 1000 types.

广东省佛山市南海奔达塑胶制品厂，创办于1990年（即原佛山市奔达塑胶有限公司，现迁往南海区）是一家专业生产塑胶管、棒材、阀门、管件的大型企业。主要产品材料有聚四氟乙烯、聚氯乙烯、聚丙烯、聚乙烯、尼龙、ABS等，品种规格有塑胶管、棒材、阀门、管件等几大系列，一千多个品种。

The tubes' buddle of the traditional heat exchangers is composed of tubes with same diameter, which influences its efficiency at small Reynolds number because of the big fluctuation of the heat transfer coefficient led by the flux fluctuation.

传统的换热器都是采用同径管组成换热管束，因而，在流量波动的工况下，管程传热系数波动较大，对换热器的正常运行有影响。

When pollen germinates on a stigma the growing pollen tubes deposit callose as small plugs, but if the plant is self-incompatible, tubes from its own pollen will deposit more callose, which then blocks the tube, preventing fertilization.

当花粉在柱头上萌发时，生长的花粉管产生少量胼胝质，但如果该植物是自交不亲和的，那么花粉管将产生比较多的胼胝质，可以阻塞花粉管来阻止受精。

Methods 1101 sterile women with fallopian tube obstruction were treated under TV hysteroscope. COOK Roadrunner guide wire was used to canalize the obstructed tube after intubation was failed. Results 1555 fallopian tubes in 1101 women were found to have obstruction, and 130 tubes were partial obstructive.

1101例输卵管阻塞性不孕患者，在电视宫腔镜下对阻塞的输卵管行插管加压疏通治疗，对未能疏通的输卵管进一步用COOK导丝疏通治疗。

Lead in glass of cathode ray tubes, electronic components and fluorescent tubes."

"5。 阴极射线管，电子元件和荧光管的玻璃材质中的铅含量。"

Lead in glass of cathode ray tubes, electronic components and fluorescent tubes.

阴极射线管，电子元件以及荧光管的玻璃中的铅含量。

"Lead 铅",5,Lead in glass of cathode ray tubes, electronic components and fluorescent tubes.

2002/95/EC 阴极射线管、电子部件和发光管等玻璃内的铅含

The reformer tubes are the 3~ generation of new type centrifugally cast reformer tubes. The reformer tube subject to research has been in service for 11 years, which is an old tube that was replaced due to over-temperature caused by process operation and other equipment. This reformer tube was used as a specimen and a series of destructive tests were done on the samples taken from it.

该炉管为第三代新型离心铸造炉管，研究对象为一根已服役11年，由于工艺操作及其它设备原因出现超温而被更换下来的旧炉管，以该炉管为试件并进行取样，进行一系列的有损试验。

Valves, Accessories, Seamless/Seamed Stainless-steel Tubes, Stainless-steel Channel Iron, Angle Iron, Laminated Steel Plates, EP Tubes for Semiconduct...

无缝/有缝不锈钢管，不锈钢槽铁，角铁，贴合钢板，半导体印管，配件，阀类。。。

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。