查询词典 tube well

Objective To explore the relationship between multi-trace elements levels in hair and human neural tube defects as well as other risk factors.

目的探讨多种微量元素与神经管畸形的关系，及其他危险因素。

This system composed by the MCU control system, the C/V transformation module, A/D transformation module, the rectification, filter module, the nixie tube LED display module as well as the warning module.

该系统由单片机控制系统、电容/电压转换模块、A/D转换模块、整流滤波模块、数码管LED显示模块以及报警模块组成。

Based on trapezoid truss,this parer introduces the features and the design methods of steel tube truss ,as well as some matters need to attend in the design ,Which may be a reference for designers.

以梯形屋架为例，介绍了钢管屋架的特点和设计方法以及在设计时应注意的问题，供设计人员参考。

In order to verify the computing model,a Pitot tube was used to measure the velocity distributions along radius direction in the converters.Validations demonstrate that computing results agree well with experimental ones.

为了验证模型的精度，用毕托管测量了催化器载体后的速度分布，并与模拟结果进行比较，计算值与测量值吻合良好。

The total and of the pitot tube were measured when the opening of the regulating valve was changed with keeping the flowrate fixed as well as unchanged the opening of the regulating valve with invariable flowrate. Then, the dynamic pressure signals were analysed with the method of PSD after computed and normalized and a better result of frequency-domain distribution was obtained. In addition, the average energy was defined and used for the analyzing of disturbance signals of regulation valve.

首先利用皮托管对相同流量不同开度及相同开度不同流量下的总压及静压信号进行测量，然后经过计算得到动压信号并进行归一化处理；其次，对归一化处理后的动压信号进行功率谱分析，取得了较好的频域分布结果；同时定义了信号的平均能量，并将其应用到了调节阀扰动信号的分析中。

To solve roller on the road the problem that two steel tube cannot realize head end not to have collision rigor butt joint well, devised a kind of new solution.

梗概： 为解决辊道上的两根钢管不能很好地实现头尾无碰撞严密对接的新问题，设计了一种新的解决方案。

It is necessary to accurately monitor location of gas-water interface in annular between casing and test tube for pressurized sealing property test of cavity of salt dome gas storage well in Jintan,Jiangsu,so DDL-III logging system and 111/16 inch.

江苏金坛盐穴地下储气库井腔体试压密封检测需要精确监测套管和测试管柱之间的环形空间中气水界面位置的变化情况，为此选用了哈里伯顿公司生产的DDL-Ⅲ数控测井系统和直径111/16in的伽马中子测井仪以及配套的井口密封设备。

The BP oil company, which provided the video, says it has been siphoning about 2000 barrels of oil a day using a narrow tube inserted in the well.

石油的BP公司，该公司提供的视频，表示它已被盗取约2000桶石油，每天用在一个狭窄的管道井插入。

On base of the study, 3D rigid-plastic FEM simulation system of tube spinning is developed. The system, in which modularized structure is adopted, has perfect preprocessing and post-processing function as well as upper automatic degree.

在上述研究的基础上，研究开发了强旋成形三维刚塑性有限元模拟系统，系统采用了模块化结构，具有完善的前后处理功能和较高的自动化程度。

The results showed short peptide LD-1 can have a well inhibiting effect on the sporangium germination of Pseudoperonospora cubensis and have a certain teratogenic action on the development of the germ tube of sporangium.

结果表明：短肽LD-1对黄瓜霜霉病菌孢子囊萌发具有较好的抑制效果，且对孢子囊芽管发育具有一定的致畸效果。

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。