In this dissertation, the theory, thermal analysis and experiment of the conductively cooling ZigZag slab laser is studied, and the main works are as following: 1 Distributions of temperature and stress in the slab and thermal effects are analyzed theoretically.

面向空間應用的全固態(tài)激光器在國外已有相應的研究和報道97爱好碰，但在國內對這種技術的研究甚少最刺激的性毛片免费视频。

While blending solid slab and hollow slab into customers' daily life, decorating and wrapping to meet various customers' needs, Z point makes flameless painting much more close to our daily life.

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Based on the experimental behavior and results of nonrectangular column-slab connections in present thesis, the calculating formulas for flexural strengths of reinforced concrete slab-column connection with cross-shaped column, T-shaped column and L-shaped column are derived by yield-line theory.

4在研究考察三種典型異形柱－板柱連接的沖切試驗現(xiàn)象和結果的基礎上，應用屈服線理論jizz国产视频，對十字形柱五月草视频、T形柱和L形柱下的板柱連接抗彎承載力進行了研究，提出了上述三種柱型的板柱連接抗彎承載力計算公式aA电影黄色电影网。

A steel plate having a tensile strength of at least about 930 MPa (135Ksi), a toughness as measured by Charpy V-notch impact test at least about 120 joules (88 ft-lb), and a microstructure comprising at least about 90 volume percent of a mixture of fine-grained lower bainite and fine-grained lath martensite, wherein at least about 2/3 of said mixture consists of fine-grained lower bainite transformed from unrecrystallized austenite having an average grain size of less than about 10 microns and comprising iron and specified weight percentages of the additives: carbon, silicon, manganese, copper, nickel, niobium, titanium, aluminum, calcium,rare earth metals, and magnesium, is prepared by heating a steel slab to a suitable temperature; reducing the slab to form plate in one or more hot rolling passes (10) in a first temperature range in which austenite recrystallizes; further reducing said plate in one or more hot rolling passes (10) in a second temperature range in which austenite does not recrystallize, quenching (12) said plate to a suitable quench stop temperature (16); and stopping said quenching and allowing said plate to air cool (18) to ambient temperature.

一種鋼板日韩欧美,另类，其抗拉強度至少約930MPa135ksi），在－40℃（－40°F）下日韩黄页无码精品视频，采用夏氏V型缺口沖擊試驗測定的韌性至少約120焦耳（88英尺－磅）黄片理论，并且其顯微組織包含至少約90％體積的細晶粒的下貝氏體和細晶粒的板條馬氏體的混合物，其中該混合物的至少約2／3由從平均粒徑小于約10微米的未再結晶奧氏體轉變而來的細晶粒的下貝氏體組成人人人人人艹，而且99久久99视频免费，其中所述的鋼板包含鐵和特定重量百分比的添加元素：碳、硅国产三级激情在线视频、錳黄色视频在线观看你懂的、銅8X永久华人成年免费网站、鎳、鈮国产高潮流白浆免费网站、鈦精品国性色无码AV网站、鋁、鈣精品国产日韩欧美精品制服、稀土金屬和鎂www.//黄片视频免费，所述鋼的制備過程為：將一鋼板坯加熱至一個適當?shù)臏囟龋辉趭W氏體可發(fā)生再結晶的第一個溫度范圍內国产，日产久久精品，采用一個或多個熱軋道次（10）日本a一级黄色视频，將所述板坯軋制成板材；在奧氏體不發(fā)生再結晶的第二個溫度范圍久久本道久久综合伊人，采用一個或多個熱軋道次（10）進一步軋制所述板材免费黄色视频在线观看不；將所述板材淬火處理（12）至一個適當?shù)拇慊鸾K止溫度（16）；停止所述淬火處理并將所述板材空冷（18）至室溫欧美在线超碰女人。

Yanbian region lies in the eastern segment of north margin of North China slab, situating on the intersect point of North China, Sibiric and the pacific slab. Space and boundary of these slabs controls the Mesozoic volcanic-subvolcanic rock distribution, which restricts the epithermal-porphyry gold metallogenic series. Though many research of deposits have been done individually, the synthesize works are few.

中文題名延邊地區(qū)淺成低溫熱液－斑巖型金成礦系列副題名外文題名 The epithermal-porphyry gold deposit series in Yanbian region 論文作者梁俊紅導師金成洙王建國教授學科專業(yè)礦產普查與勘探研究領域\研究方向學位級別博士學位授予單位東北大學學位授予日期2002 論文頁碼總數(shù)112頁關鍵詞成礦系列金礦床延邊地區(qū)館藏號BSLW /2003 /P618.51 /1 延邊地區(qū)處于華北板塊北緣東段国产精品国产欧美综合一区，正好位于華北板塊、西伯利亞板塊和瀕太平洋構造三大構造區(qū)域之間的三聯(lián)點處色网址网址，三者所處的空間位置和邊界條件亚洲国产精品色一区二区三区江苏，對延邊地區(qū)的火山—次火山巖及與之有成生聯(lián)系的金成礦系列的形成和演化起著明顯的控制作用。

By making theoretical analysis on vibration characteristics of a single slab and multi ones set in the inverted arch ring, four processes about stability failure, that is free vibration, locking, sleeking and distortion are proposed on the condition that water sealing was damaged and anchor-hold was out of action, a formula of the slab's maximum free displacement and dynamic equations in each process are obtained.

對反拱水墊塘單底板塊和多底板塊振動特性進行了理論分析av人人摸人人爽人人捏人人操，提出了拱圈底板塊失穩(wěn)分為自由振動日韩中文字幕在线大全视频、鎖定、滑動變形及拱圈失穩(wěn)四個過程啊啊啊啊啊啊小黄片，給出了各振動過程的動力學方程以及底板塊自由振動的最大理論高度的計算公式免费播看完整大片40分钟。

The shear wall core is torsionally restrained by the ground-floor slab at level 1 and by its connection to the main building through concrete slab diaphragms located at level 11 and above.

剪力墻核心體抵抗扭矩的結構由1層的樓板和11層及以上的其與主體結構通過混凝土樓板的連接提供。

Recently, the cracks of concrete are common in building structures, they appear in the slab of roof, the slab of wall, basement and so on. They affect the safety and durability, and lead to trouble and compensation in real estate. Although many of clacks do not affect the safety of building, people believe that the cracks are the sign of dangerous, and are afraid of the cracks.

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Taking U71Mn steel as an example, the effect of heating time, protective coating and rolling deformation rate on decarburization and oxidation of the heavy rail slab has been studied by observing the changes in the slab's decarburized layer in the course of heating and rolling.

以U71Mn鋼為例，通過觀察在加熱和軋制過程中的鋼坯脫碳層的變化72式免费A片视频，研究加熱時間国产a片久久精品、保護涂料和軋制形變率對重軌鋼坯脫碳和氧化的影響。

Taking U71Mn steel as an example, the effect of heating time, protective material and rolling deformation rate on decarburization and oxidation of the slab has been studied by observing the changes of the slab's decarburized layer during the course of heating and rolling.

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