查询词典 tubular

Grant prideco drilling products.co., ltd tianjin tanggu branch is wholly owned subsidiary of nov grant prideco is the world's leader in drill stem technology and drill pipe manufacturing, a global leader in drill bit technology and manufacturing, and a leading provider of high-performance engineered connections and premium tubular products.

格兰特钻具有限公司北京分公司是国民油井华高所属的一家全美资公司。格兰特公司在钻柱技术和生产以及在钻头技术和生产方面一直处于全球领先地位。同时也是全球最主要的高性能钻杆供应商之一。

Steel ratio is one of the most important factors affecting the ductility of concrete-filled steel tubular frames.

含钢率是影响钢管混凝土框架结构延性的重要因素。

Methods The designed flow chamber had provided flow shear stress at 0.5, 1 Pa (5 and 10 dyn/cm^2) for a period of 1 h, 3 hand 6 h respectively. Semi-quantitive RT-PCR was used to detect the expression of megalin/cubilin mRNA in cultured renal tubular epithelial cells.

应用流室系统提供0.5、1Pa(5、10 dyn/平方公分)的剪切应力处理培养的肾小管上皮细胞，分别作用1、3、6h后，用RT-PCR法检测megalin/cubilin mRNA的表达。

They can be recognized almost immediately by the gaping maws which sprout from their sinuous limbs and tubular bodies, which issue forth eldritch fire.

台靳特克神的纵火怪是一种介于蘑菇柄和人形的一种恶魔，除此之外，他们还总是从他们的手臂上掉落弯曲的粉红色的火焰。

By the comparison and analysis of the ionic current under different bias voltage between the long-straight tubular combustion device and the engine, it's also found that in the propagating flame front region and postflame region, with the increase of bias voltage the force of electric field will increase and the electrization action will be enhanced, which will enlarge the ionic current.

建立的离子电流随偏置电压变化关系的数学模型与实际燃烧过程是相符的，同时还可得到在两个实验中离子电流第一峰和第二峰的峰值随偏置电压变化关系基本都是线性的。

SEM images show that when the reaction solution is higher,the morphology of silver is tubular.This Ag-MPOF composite fiber has favourable conductivity and could be used as array electrode in electroanalysis.

扫描电镜分析显示：在高反应物浓度下，在孔洞阵列中进行反应得到管状银修饰的MPOF；该Ag微管-MPOF复合纤维是导电性的，可以直接作为阵列电极制造电化学传感器。

These epithelial elements arise embryologically from foregut endoderm in the process of bronchial tubular growth.

这些表皮细胞在胚胎学上把源于支气管生长过程中的前内脏叫内胚层。

Objective:To study the role of bFGF in the culture of renal tubular epithelial cell injury of rats.

目的：研究bFGF对由庆大霉素引起的对体外培养的大鼠肾小管上皮细胞损害的保护作用。

In the 10 most important equipments for solar cell production line, 8 types can be made in China, of which 6 ones (diffusion furnace, plasma etcher, cleaning/flocking machine, PSG equipment, and low-temperature drying oven) hold leading roles in production lines in China; and the rest two types (Tubular PECVD and Fast Sintering Furnace) coexist with the imported equipments and their shares keep increasing.

在10大太阳能电池制造生产线设备中，国产设备已能提供其中的8种，其中有6种(扩散炉、等离子刻蚀机、清洗/制绒机、去磷硅玻璃设备、低温烘干炉)已在国内生产线上占据主导地位，2种(管式PECVD、快速烧结炉)与进口设备并存但份额正逐步增大。

The results showed that the intensely exothermic problem was resolved in the tubular reactor and the even temperatures distribution came true.

结果表明所设计的反应器很好解决了氯化反应的强放热问题，实现了温度的均布。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。