The welding performance of homemade wear - resistant cast steel has been studied base on the weldability tests, the repair welding procedures of wean - resistant cast steel ( abrasion - plates ) have been made up, the results show that satisfying repair welding quality can be attained with such welding conditions as the low hydrogenous alkalescent welding rod, preheating and slow cooling, strictly maintaining the interbedded temperature of 250 ~ 300 and controlling welding technique
通過對其焊接性能的試驗研究，制定了該類鑄
鋼件（磨耗板）的補焊工藝：低氫型堿性焊條，預熱與緩冷相結合的工藝措施，嚴格控制層間溫
度（ 250 ~ 300 ）及焊接工藝規范，可獲得滿意的修復質量。
Relation between alnico thickness and air gap flux of ipm machine
切向結構永磁同步電機中磁
鋼厚
度對性能的影響
The magnet of kaiyuan ct permanent canister magnetic dressing machine is made of the high quality ferrite material or rare earth alnico. magnetic separator the average magnetic induction of the canister surface is 100 - 600mt
磁選機-豫重牌ct永磁筒式磁選機的磁系，採用優質鐵氧體材料或與稀土磁
鋼復合而成，磁選機筒表平均磁感應強
度為100 600mt 。
Edge of the granule image by video is the key of its image partition, the article tries to carry through a deeper research on image partition at the same time. granule is made up of savageness mater and industry material ( including of rock, sand, earth, atomy, steel, china, concrete, ink powder, magnetism powder, light fine and tiny powder used silicon, cell etc. )
顆粒是構成天然物質和工業材料（巖石、礦石、沙子、泥土、塵埃、
鋼鐵、陶瓷、水泥、墨粉、磁粉、光纖和料封裝材用高純硅微粉、細胞等）的基本單元，顆粒尺寸（粒
度）是顆粒的首要特徵和粉體材料的第一指標。
Influence of hot rolling technology on austenite grain size of 20mnmob steel
鋼奧氏體晶粒
度的影響
4, screw thread gob produced by internation standard, material is 38chrome molybdenum aluminium azote steel, high rigidity, long time
四螺紋口按國際標準化製造，材料選用38鉻鉬鋁氮化
鋼，硬
度高，使用壽命長。
Development of high strength low - carbon bainite steel
高強
度低碳貝氏體
鋼的試制
Features : 1. foam core balsa sheeted wing, fiberglass fuselage
特點： 1輕質高強
度的玻璃
鋼材料機身，預先噴漆
T - tail with aileron, flaps 2. foam core balsa sheeted wing, ultracote cover
特點： 1輕質高強
度的玻璃
鋼材料機身，預先噴漆
Features : 1. light weight balsa wing, fiberglass fuselage. 2. ultracote cover, v tail
特點： 1輕質高強
度的玻璃
鋼材料機身，預先噴漆
Optional accessories : esc - 30 features : 1. balsa wing and tail, fiberglass fuselage 2. ultracote cover,
特點： 1輕質高強
度的玻璃
鋼材料機身，預先噴漆
Features : 1. light weight balsa wing, fiberglass fuselage 2. white, red, purple available
特點： 1輕質高強
度的玻璃
鋼材料機身，預先噴漆，有白紅紫
Optimal basicity of 5ni - cr - mo steel electrode coating
鋼配套焊條藥皮堿
度研究
To improve the binding strength between the deck slabs and deck surfacing layer of badong changjiang river highway bridge and to provide the surfacing layer with anti - cracking ductility, a series of technical measures has been taken in the construction of the deck surfacing of the bridge, including those of embedding binding reinforcement in the deck slabs, spraying inorganic binding agent between the slabs and layer, replacing part of the cement with micro expansion agent and adding appropriate amount of polypropylene fibers to the concrete
摘要巴東長江公路大橋橋面鋪裝，通過採取預埋橋面粘接
鋼筋、噴塗無機界面粘結劑、用微膨脹劑替代部分水泥、在混凝土中摻入適量的聚丙烯纖維等措施來提高橋面板與鋪裝層間的界面粘結強
度和給橋面抗裂增韌。
Design of half - through steel pipe bowstring concrete arch bridge of long - span, and knowledges to it
大跨
度中承式
鋼管系桿混凝土拱橋設計和體會
The calculation modes of the coefficient of shrinkage and creep of the bulgy core concrete in steel tube are discussed. based on a few reasonable hypotheses and the stress - strain relation of concrete acquired by the " adjusting valid modulus depending on load time " method, a compact formula is reasoned out, which is applied to calculate the equivalent elastic modulus of the bulgy core concrete considering the affection of shrinkage and creep. so, the analysis of the affection on cfst arch bridge by shrinkage and creep can be progressed by pole - girder fem, further more, the analysis precision is quite high
本文還對核心膨脹混凝土特殊的收縮、徐變系數計算模式展開了探討，在合理的假設前提下，採用「齡期調整的有效模量法」得到的混凝土的本構關系，推導出
鋼管內核心混凝土在考慮徐變影響后的等效彈性模量計算公式，並以此為基礎採用桿系有限元方法來對
鋼管混凝土拱橋進行較高精
度的收縮徐變分析。
I have a pair of carbon fiber blades with dynamic tracking problem caused by imbalance of bending stiffness
我有一付碳纖漿，總是動態雙漿，后來發現是彎曲
鋼度不對稱引起的。
These products are mainly applied to the area of petro - chemistry, fine chemistry, fertilizer.
淋水料等，且性能
鋼度好便於安裝。客戶使用后，反映良好。
The static measurement includes weight, center of gravity, static lead lag, bending stiffness and torsion stiffness
靜態測量包括重量，重心，靜前沿滯后，彎曲
鋼度，和扭區
鋼度。
Generally speaking, stiffer blades are better for hard 3d flight and less stiff blades are appreciated by graceful f3c pilots
一般說來，鋼度強的漿適合於劇烈型的3d飛行，鋼度弱的漿更受優美的f3c飛手青睞。
