The cause of extrusion enfold-defect at the top of piston is analyzed,which is because of the thin remainder.
对活塞顶部挤压折叠缺陷产生的原因进行了分析,发现折叠缺陷是由于余料太薄引起的缩尾性折叠;分别对增厚坯料法、方形坯料法和两步挤压法进行了分析比较,结果表明采用增加坯料厚度的方法来防止折叠不仅增加了材料的浪费,也会增大后续的机加工量,是不经济的;方形坯料虽说可以有效的避免活塞顶部金属对流情况,但是会在活塞环岸内侧产生折叠;而两步挤压法有效的防止了活塞销顶部金属对流的情况,有效的避免了活塞顶表面折叠的产生。
The characteristics, generating process and innuencing ractors of lamination defect of sendfinished pipe are analyzed based on pierced high temperature alloy blank, and the generating mechanism of lamination defect is discussed.
以高温合金管管坯穿孔为基础，对毛管分层缺陷的特征、形成过程及影响因素进行了研究，并讨论了分层缺陷的形成机理。
The results show that the elements segregation was the main reason for the lamination defect During the continuous casting process,inclusions of MnS,TiC,NbC were formed because of elements segregation of S,Mn,Nb,Ti at the center of the steel.
Q345B中厚钢板在拉伸试验后断口出现分层现象,选择分层缺陷严重的部位,采用光学显微镜、扫描电镜、能谱仪等对其显微组织、缺陷形态和微区成分进行了分析。
The effect of coating defect on the permeation behavior of corrosive ions through coatings,coatings degradation,the corrosion behavior of substrates are discussed based on the review of the study field which included coating defects,blistering and wet adhesion etc.
通过对涂层缺陷、涂层起泡、湿附着力等研究领域的回顾 ,讨论了涂层缺陷对腐蚀性介质离子在涂层中的传输行为、涂层失效、基体腐蚀行为等方面的影响。
Experimental Analysis on Outer Folder on GCr15 Steel Tube
GCr15钢管外折叠缺陷成因的检测研究
Analysis of Folding Defect of GH3600 Tube Inner Wall
GH3600精细薄壁管内壁折叠缺陷分析
Reasons and Solutions About Folding Defect in Extrusion Forming of Thrust Bearing
止推轴承座挤压成形过程中产生折叠缺陷的原因及解决方案
CLINICAL APPLICATION OF THE NASOLABIAL FOLD WRAPPED FLAP ON REPAIRING PINNA NASI DEFECT
应用鼻唇沟折叠皮瓣修复鼻翼缺损
Defect Modes Based on Negative Refractive Index Structural Defects Coupled in One-dimensional Photonic Crystals;
一维光子晶体中多负折射率缺陷导致的缺陷模
Defect mode in positive-negative index photonic crystal with negative refractive index structural defect
含负折射率缺陷的正负交替光子晶体的缺陷模
folding intermediate
折叠中间体，折叠中间态
capable of collapsing or being collapsed.
能够折叠或者被折叠。
Gatefold: Also called Fold-out, Thrown-out.
对门折（折叠插页）
THEORY AND APPLICATION OF PRESTACK MIGRATION IN FLAW DETECTION OF CONCRETE STRUCTURE
混凝土结构缺陷检测中的叠前偏移理论及应用
Thought of system defects from an analysis of recognition dilemma---system defects of the new-type rural Cooperative Medical Service and the countermeasures;
认同尴尬折射制度缺陷——漫谈新型农村合作医疗的制度缺陷及对策
Economic Ordering Quantity Models for Items with Fuzzy Imperfect Rate and Price Discount;
含价格折扣和模糊缺陷率的EOQ模型研究
The Growth of Double Refraction Crystal YVO_4 by Czochralski Methodand and Study the Growth Defects
提拉法生长双折射晶体钒酸钇（YVO_4）及其缺陷研究
The Research of Fabricating Two-Dimensional Photorefractive Photonic Lattice within Linear-defect
具有线缺陷二维光折变光子晶格的制备研究
Impurity Band in One-dimensional Photonic Crystal Containing Defect Layers with Negative Refractive Index
含负折射率缺陷的一维光子晶体的杂质带
Defects due to an unsatisfactory rate of teeming. This kind defects include splashing, rippled surface, and laps or folds.
由于浇注速度掌握不好而引起的缺陷。这种缺陷包括飞溅、波皱面以及重皮或摺叠。
concertina movement
折叠［蛇腹］式构造
automatic layboy
(桨板)自动折叠机