查询词典 tubular girder

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。

Based on the pile driving logs, geological conditions on site and results of high-strain dynarnic pile-driving tests of the steel tubular piles driven in decomposed rocks, the effect of diesel and hydraulic hammers in driving these piles is analyzed.

本文根据风化岩地基施打钢管桩的打桩记录，地质条件，高应变动力检测成果进行比较，分析柴油锤和液压锤的使用效果，为在风化岩地基上施打大型钢管桩提供依据和设计施工参数。

A kind of waste PTFE filled with 45% of stainless steel powder was chosen as the experimental material. The samples were pyrolyzed in a self-made tubular reactor. In addition,the effects of pyrolysis conditions were investigated.

在自制的管式热解反应器中进行填充PTFE废料（含45%不锈钢粉）热分解实验，考察了废料的热解过程及主要因素的影响。

Printed circuit boards were pyrolysed in a tubular furnace with the aim of separating and recovering the organic and metallic materials.

采用温控管式炉在750℃条件下，对废弃印刷线路板进行高温裂解，以分离回收其中的有机和金属材料。

The use of electric hot plate heating or steam heating, hot plate surface temperature uniformity up to 2 , electric resistance heating elements for tubular heater, hot plate heating hot performance with automatic thermostat.

热板采用电加热或汽加热，热板表面温度均匀性达±2℃，电加热元件为管状电阻加热器，热板加热热具有自动调温性能。

A method of manufacturing the semiconductive belt pelletizes a mixture of a side-chain liquid crystalline polymer and a liquid conductive polymer and extrudes the mixture through a double bubble tubular injection molding apparatus.

一种制备该半导电带的方法，包括将侧链液晶聚合物和液体导电聚合物的混合物造粒，及通过双吹泡管状注射成型设备挤出该混合物。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"