This paper introduced the research about the micro structure and the properties of the surface layer and the ferronickel core-copper clad boundary layer of dumet wire by means of AES 、 WDS and x-ray diffraction.

The wettability between the glass and dumet wire depends on both the cleanliness and constitution of surface layer and the heating conditions.

玻璃与杜美丝的润湿性决定于表面层的净化程度和构成及加热条件。

When you drink the water, think of those who dug the well.

饮水不忘掘井人。

Based on analyzing the observed data of long term operation, the attenuation law of yields and the control effect of each affecting factor are found out for dug well with infiltration pipes arranged radiantly in river bed after long term operation.

通过对长期运行观测资料的分析，查明了河床辐射井长期运行出水量的衰减变化规律及其影响因素所起的相应控制作用。

The test of the field model of the dug well foundation of bridge on the scale of 1 ∶ 2 and a mechanical analysis on the foundation soil with three dimensional finite element program is presented in this paper.

本文介绍了1∶2比例尺的桥梁挖井基础现场模型试验以及采用有限元计算程序对基础－土体进行的空间力学分析。

I have known silence: the cold, earthy silence at the bottom of a newly dug well;

我了解宁静：一口新井中寒冷又朴实的宁静；

The Operation Analysis of Dug Well with Infiltration Pipes Arranged Radiantly in River Bed

集取河床渗透水辐射井的运行分析探讨

Some problems in the design of dug well with infiltration pipes in river bed

河床辐射井设计的若干问题

Design Method of Dug Well Foundation of Bridge in Loess Area

黄土地区桥梁挖井基础设计方法研究

Conclusion: Ductus thoracicus ligation is an effective method to prevent postoperative chylothorax.

最后认为，胸导管结扎是预防术后乳糜胸发生的有效方法，应引起重视。

Changes of ductus venosus Doppler ultrasound waveforms in normal and dextrocardia fetus

正常及右位心胎儿的静脉导管超声多普勒血流波形变化

The Applied Value about Diagnoses of Fetal Heart Abnormalities by Checking Ductus Venosus with ultrasound

静脉导管超声检测在胎儿心脏畸形诊断中的应用价值

Objective To dissect and observe the ductus venosus in fetal liver.

目的解剖观测胎儿肝脏静脉导管的形态。

Blood Flow Velocity Waveforms in the Ductus Venosus of Normal Fetuses

正常胎儿静脉导管的多普勒血流波型

The Observation and analysis of morphology of ductus venosus in fetal liver

胎儿肝脏静脉导管的形态学观测分析

Relationship between ductus venosus blood flow and chronic fetal distress

静脉导管血流变化与慢性胎儿窘迫的关系

Application of fetal ductus venosus Doppler blood flow detection in prenatal diagnosis

胎儿静脉导管多普勒血流检测在产前诊断中的应用

Immunohistochemical results demonstrate that the main cell types containing CSD are Leydig cells of testis, epithelial cells and some stromal cells throughout the efferent ducts, epididymis and ductus deferens.

CSD主要分布在睾丸的Leydig细胞和输出管、附睾以及输精管的上皮细胞和一些基质细胞中。

Detection of immune complexes ( ic) in the testis and epididymis of rabbit and monkey after injection of sodium morrhuate ( sm) via ductus deferens

输精管内注射鱼肝油酸钠后睾丸及附睾内免疫复合物的检测

Morphology of ductus deferens

输精管的形态学研究

Methods The smooth muscle cells were isolated by enzymatic digestion from the ductus deferens of rats and cultured in vitro for 4 weeks.

方法取SD大鼠的输精管，用酶消化法分离、提取平滑肌细胞，进行体外培养、扩增。