結構型材 的英文怎麼說
中文拼音 [jiēgòuxíngcái]
結構型材
英文
structural shapes-
The structures and characteristics of several graphite samples are measured by means of powder x - ray diffraction ( xrd ), brunauer - emmer - teller ( bet ) surface area measurement, inductively coupled plasma ( icp ) spectroscopy, particle size analysis and electrochemical measurements. the effects of origin, structure, impurity, particle size, specific surface area of carbon materials on the electrochemical characteristics are studied. a synthetic graphite with abundant resources, low cost and favorable performance is determined as the raw material for modification of graphite
採用xrd 、 bet 、 icp 、激光粒徑分析及電化學性能測試等方法，對國內外多種典型石墨樣品的結構與性能進行比較，研究石墨材料的來源、晶體結構、雜質含量、顆粒大小、比表面積等因素對其充放電性能的影響，確定一種性能較好、價格低廉、來源廣泛的普通人造石墨粉作為熱處理與摻雜改性、以及復合結構炭材料研究的原材料。In this paper matlab and vb are used to build a software which can predict absorption coefficient ' s of the underwater anechoic coatings from these analytical models. finally, some algorithm of the single parameter minimization, nonrestraint nonlinear minimization and restraint minimization in the optimization design theory are studied. the formulas of absorption coefficient of these analytical models are object functions
本論文利用各種解析模型的聲學設計理論，使用matlab與vb軟體建立了一套水下消聲覆蓋層吸聲系數預報軟體，研究了最優化設計中單參數最小化、無約束非線性最小化和有約束最小化理論的一些演算法，利用現有模型的吸聲系數計算公式作為目標函數，初步優化了一些結構的材料參數。Under the inspiration of self assembly in biology, chemists are now making use of weak interaction between different moleculars to get well arrayed supramolecular to construct nano - structure
化學家在生物體系自集現象的啟示下，用各種類型的相互作用去創造整齊排列的大分子，用於構築納米結構的材料。Aim for the topic - study of prestressed lightweight concrete platform, from selecting style of the platform, to matching concrete material and admixture, to designing and building the model, to carrying out experiments of temperature field and stress performance, and analysis of finite element, some research work have been done as follows : 1
本文針對「輕質高強預應力混凝土平臺的研究」這一課題，從罐體結構型式的確定，混凝土基本材料及外加劑的選配，模型的設計製作，到模型結構在各種外荷載及溫度荷載作用下的受力性能試驗研究及罐體結構的有限元分析，展開了如下幾個方面的研究： 1Borrowing ideas from design theory and structure type of oil hydraulic proportional throttle valve and taking domestic and overseas correlative development as reference, this paper determines working conditions of the valve, designs its structure, selects suitable materials of its components, and performs corresponding intensity and temperature check
在借鑒油壓比例節流閥的設計理論、結構型式以及參考國內外相關研究成果的基礎上，確定了水壓比例節流閥的工作條件，設計了水壓比例節流閥的結構型式，選取了合適的元件材料，並進行了相應的強度和溫升校核。Standard specification for aluminum - alloy extruded bar, rod, tube, pipe, and structural profiles for electrical purposes bus conductor
電氣用途鋁和鋁合金擠壓棒材桿材管和結構型材的標準規范New structures and material systems including blue - green lasers and cascade lasers
新型結構與材料系統，包括藍綠光雷射與串疊雷射。Cold formed welded structural hollow sections of non - alloy and fine grain steels - part 1 : technical delivery conditions ; german version en 10219 - 1 : 2006
非合金鋼和細晶粒鋼的冷成形焊接空心結構型材.第1部分Hot finished structural hollow sections of non - alloy and fine grain steels - part 2 : tolerances, dimensions and sectional properties ; german version en 10210 - 2 : 2006
非合金和細晶粒結構鋼的熱精加工空心結構型材.第2部分Definition of the wood - frame - construction house : one kind of frame - construction house, the wall and the floor and the roof of which are made of the structural wood - based panel and the specific timber, distance between each is less than 600 millimeter, jointed by the metal joinsts
輕型木構小住宅是指：將木基結構板材與間距不大於600mm側立的規格材用金屬件連接成墻體、樓蓋、和屋蓋，並組成框架式結構的住宅，一般為1 ? 3層。The types of impedance transition and of composite resonant are now widely used, but the research in this area is not perfect. in this paper analytical means is used to study absorption coefficient ' s prediction models. diversified cavity structures and material parameters are analyzed in detail in order to the anechoic coalings " acoustical design
現代應用的吸聲層基本是阻抗過渡結構或復合諧振吸聲結構，但我國在這一領域的研究卻不盡如人意，針對水下消聲覆蓋層的吸聲系數預報及聲學設計問題，本論文利用多種解析方法研究聲學模型，並對各種模型的聲腔結構和材料參數做了詳細的分析，為消聲層的聲學設計打下了良好的基礎。Carbon and high - strength electric resistance forge - welded steel structural shapes
碳和高強度電阻鍛焊鋼結構型材The object to study in this paper is the electric heat reservoir boiler, which is used to supply heat water and bask for the resident population. the use of the system define the character of the output medium with the lower request on quality and parameter, at the same time, it ask the boiler should has the higher character on the respect of the cost, reliability, economy, and so on. hence, the paper carefully design and study the system for the choice and design of the boiler core heating componet, the lay of the heat exchanger, the working status of the heat reservoir equipment, the adjustment and control mode of to supply heat water. the study work mainly include underside some contents, forexample : 1. to confirm the heat medium parameter to adapt the requirements of the most of the heating equipments and to design the instruction of the boiler and heat reservoir as simple as possible
圍繞上述原則，本文從電熱鍋爐核心加熱元件的選型及設計、換熱面的布置、蓄熱設備的運行工況、供熱的調節方式以及控制方法進行了較細致的研究和計算，具體研究工作有以下幾個方面： 1 .根據使用要求，確定適用於多數採暖設備的熱介質參數，設計在結構型式上盡可能簡單的鍋爐和蓄熱器； 2 .對製造加熱元件電熱管的各種材料進行了對比和分析、在結構尺寸上進行了仔細的分析和計算，根據實際使用條件給出合理的設計，使其具有較高的可靠性和使用壽命； 3 .對不同換熱面布置形式進行傳熱分析。Wooden structure house and structural wood products, light wood structure, the raw materials of wooden structure and so on
木結構房屋及結構木產品，輕型木結構，木結構用材等戶內外結構系列E materials for printed boards and other interconnecting structures - reinforced base materials, clad and unclad - non - halogenated epoxide woven e - glass reinforced laminated sheets of defined flammability vertical burning test, copper - clad
印製板和其他互聯結構用材料.包被和非包被增強基材分規范集.阻燃型The strength is a main mechanics performance index of the concrete. it has always been a focus of material scientific research of concrete. models about mechanics characteristic of concrete were mostly the understanding based on material macroscopical level of concrete in the past. its main characteristic turns the material ideal with heterogeneous, nonuniform nature into the even, continuous body and carry on modeling. this kind simplified and met project practice ' s demands to a certain extent, but it is difficult to study the influence produced toward strength of material of structure of the microcosmic or the mescoscopic within the concrete material with this kind of method
以往有關混凝土力學特性的模型大多是基於混凝土材料宏觀層次的認識，其主要特點是把具有多相、非均勻性質的材料理想化為均勻、連續體進行建模，這種簡化盡管在一定程度上滿足了工程實踐的需要，卻難以用這種方法來研究混凝土材料內部微觀或細觀結構對材料強度所產生的影響，不能說明材料內部結構如孔結構變化時強度的變化規律，也不能用於指導如何改進材料的組成和微觀結構而達到提高混凝土強度的目的。Applying this forward model, the system identification theory is firstly introduced to gpr signal analyzing field, and the sidthk program is developed for backcalculating dielectric property and thickness of pavement structures
應用該正演模型，首次將系統識別理論引入探地雷達信號分析領域，提出了路面結構層材料介電特性及其厚度反演分析方法，並開發了反演分析軟體sidthk 。Standard specification for aluminum - alloy 6061 - t6 standard structural profiles
鋁合金6061 - t6標準結構型材標準規范Standard specification for alloy steel structural shapes for use in building framing
房屋構架中使用的合金鋼結構型材標準規范2. study for the machine that is used to draw lines and pinch holes in ship building and large - sized metal structure bending
本數控劃線機主要為船舶建造及大型金屬結構型材彎曲加工時劃線及開孔而研製。分享友人