查询词典 tubular

The fired heater comprises a radiant section enclosure with a number of U tubes in the radiant section. The U tubes are formed by connecting one or more tubular sections, and the U tubes are provided with internal generally longitudinal fins.

烧制的加热器包括一带有多个在辐射部中的U管的辐射部室。U管通过将一个或多个管状部相连而形成，而且U管设有内部的通常为纵向的翼片。

This is because:① hypertension caused by macrovascular disease, microvascular disease, the body part can hypoxia, blood lactate levels, leading to uric acid by inhibiting renal tubular secretion, coupled with increased synthesis of uric acid in patients, renal clearance of uric acid will reduce the functionality;② some long-term use in patients with hypertension Thiazide diuretics, the result of hypovolemia, which was repeated absorption of uric acid, thus leading to hyperuricemia.

这是因为：①高血压引起的大血管病变、微血管病变，可使机体部分组织缺氧、血乳酸水平升高，导致肾小管分泌尿酸受到抑制，加之病人体内尿酸合成增加，肾脏清除尿酸的功能就会降低；②部分高血压患者在长期使用噻嗪类利尿剂后，造成血容量减少，致使尿酸被重复吸收，从而引起高尿酸血症。

In terms of function, our rivets include semi-tubular rivets, solid rivets, non-standard rivets and screws and so on; in terms of materials, include brass, aluminium, stainless steel and various kinds of plating, such as nickel, bronze, zinc an black zinc according to customers' requirement.

我厂生产的铆钉按功能来分，包括半空心铆钉、实心铆钉、非标准铆钉及螺钉等；按照材料来分，可分为铜铆钉、铝铆钉、不锈钢铆钉等，可有多样化的电镀品种，如镍、青铜、锌、黑锌等电镀。

Elbaz's natural inclination is to make women feel happy—and that means sneaking plenty of sparkle into the seams from time to time, adding giant tubular neckpieces, and including considerately thought-out accessories like fur stoles sewn onto a loop, ready to pull on over…whatever.

艾尔巴仕的自然倾向是使妇女感到高兴，这意味着时不时的有大量的火花偷偷进入接缝，补充巨头管的毛皮围巾，包括关切的深思熟虑的附件，如在环上缝上皮毛圣带，准备拉过。。。

The main applications are oil or gas transfer pipe; pipe for oil well bushing; transfer pipe for medium or low pressure water, gas, oil; pipe used in the structure of low and medium pressure boiler、engine boiler heat exchanger and condenser; pipe for construction、iron tower、frame structure、tubular pile、stanchion and other structures; pipe for mechanic、engine、automobile、apparatus and other mechanical accessories.

产品主要用途：石油天然气工业中输送油、气，水；油井套管；输送中、低压水、煤气，油；低压和中压锅炉及机车锅炉、换热器，冷凝器结构中；土木建筑、铁塔、网架、管桩、支柱及其它结构；机械、机车、汽车、器具，其它机械零件。

The millimetersized tubular crystal selenium was first prepared. By studying the process of treating selenium in ethylenediamine, we proposed the mechanism of the preparation of selenides under solvothermal condition. The selenides came into being from the reaction of metal ions with Se〓, which was obtained by the amine attacking selenium. Moreover, a new precursor to prepare nanocrystalline selenides at room temperature was obtained. From this precursor, we have prepared nanocrystalline silver selenides, copper selenides, lead selenides and cadmium selenides nanorods.

首次报道了采用溶剂热处理的方法制备出厘米尺度的管状结构硒晶体；通过对硒粉在乙二胺中的溶剂热研究，初步探讨了以单质硒为硒源的溶剂热合成硒化物的反应机理应是硒受胺类的亲核进攻变成Se〓而进一步形成相应的硒化物；获得了合成硒化物纳米晶的前驱物，并在室温条件下合成了硒化银、硒化铜、硒化铅纳米晶和硒化镉纳米棒等。

Tubular cast tungsten carbide is build-up welded mainly by means of oxygen-acetylene flames.

管装粒状铸造碳化钨主要是用氧—乙炔焰进行堆焊。

Inflorescences capitate, globose to ovoid; scapes thin, twisted, angled, base surrounded by a bladeless, tubular sheath.

花序头状，球状或卵球形；花葶细，扭曲，倾斜，基部被无叶片的管状的叶鞘包围。

Underground electric substation ; uplift pile ; deep excavation ; bearing characteristic ; pedestal uplift pile ; subsequent side inject ; field test ; double tubular method ; off-load rebound ; bearing capacity loss

地下变电站抗拔桩深层开挖扩底桩注浆现场试验双套管法卸荷回弹承载力损失

And adopting advanced cooling control process, tubular pile steel wire s with good surface quality,high precision and excellent comprehensive mechanic property is produced.

介绍了天津钢铁公司通过设计合理的化学成分和工艺路线，控制C、Si、Mn等成分均匀稳定，采用先进的控冷工艺，开发出具有表面质量优良、尺寸精度高以及良好的综合力学性能的管桩钢丝用盘条。

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。