| 释义 |
pre·form·s 英priː'fɔːm美priː'fɔːm COCA¹³⁶³⁵⁸BNC²³⁶²¹³⁺¹
基本英英搭配例句Thesaurus例句
vt.预先形成¹⁸;预制⁶⁷n.预成型件¹⁰;雏形⁵原型preform的三单过去分词preformed现在分词preforming三单preforms
Verb:
form into a shape resembling the final, desired oneform or shape beforehand or determine the shape of beforehandlaminated preform叠层预成型物…
动词100%
用作及物动词The superiorpreformof composites is a basic requirement and one of key factors for fabricating superior properties composites.摘要高质量复合材料预制块是获得高性能复合材料的基本要求和关键要素之一。
An algorithm of three-dimensional braided composite materialpreformimage proce ssing based on mathematics morphology is presented.提出一种基于小尺度的数学形态学的三维编织复合材料预制件图像的边缘检测方法。as in.destine
同义词 doom,intendallot,appoint,assign,consecrate,decide,decree,dedicate,design,determine,devote,earmark,fate,foreordain,predestine,preordain,purpose,reservedoom to,mark out
反义词 hesitate,keep,misuse,use,wasteas in.determine
同义词 elect,establish,fix,resolvedestine,doom,fate,finger,foreordain,predestine,predetermine,preordain,purpose,settlemake up mind
反义词 destroy,ignore,unsettlebegin,doubt,hesitate,miss,overlook,start,waveras in.foreordain
同义词 destine,foredoom,foreshadow,foretell,prearrange,predestine,predetermine,preordain,reservedestinate
destineverb predetermine, ordain
allot,appoint,assign,consecrate,decide,decree,dedicate,design,determine,devote,doom,doom to,earmark,fate,foreordain,intend,mark out,predestine,preform,preordain,purpose,reserve
destinesverb predetermine, ordain
allots,appoints,assigns,consecrates,decides,decrees,dedicates,designs,determines,devotes,doom to,dooms,earmarks,fates,foreordains,intends,marks out,predestines,preordains,purposes,reserves
determineverb choose, decide
destine,doom,elect,establish,fate,finger,fix,foreordain,make up mind,predestine,predetermine,preform,preordain,purpose,resolve,settle
determinesverb choose, decide
actuates,arbitrates,calls the shots,cinches,clinches,completes,disposes,drives,ends,figures,finishes,fix upon,halts,impels,inclines,induces,moves,nails down,opts,ordains,persuades,pins down,predisposes,regulates,resolves,rules,settles,takes a decision,taps,terminates,ultimates,winds up,wraps up
foreordainverb doom, fate
destinate,destine,foredoom,foreshadow,foretell,prearrange,predestine,predetermine,preform,preordain,reserve In the hot repressing of the powder sintered preforms, the increasing forging force increases its densities at a constant temperature.
在相同温度下进行粉末烧结体热复压，锻造力的增加往往使锻造密度也增加。 cnki
It is prerequisite to measure the three-dimensional braided composite materials preforms technical parameters in the process of its design and production.
在三维编织复合材料预制件的研制和生产过程中，需要测量和分析材料的工艺参数。 cnki
The fabrication technology of fiber preforms for liquid composite molding LCM is an important aspect on cost- effective composites.
纤维预成型技术是复合材料液体模塑工艺 LCM低成本化中的重要方面。 cnki
The hydrostatic stress shows great effect on the densification deformation of spray deposited preforms during rolling.
多孔材料流变应力呈稳态特征的临界变形温度和应变速率比致密材料大； cnki
The equipments of the experiment, the materials and the experiment method at the hot repressing of powder sintered preforms were introduced.
介绍了粉末烧结体热复压试验用的设备、材料及方法。 cnki
The porosity of preforms increased with the increase of starch contents.
随着造孔剂含量的增加，预制体气孔率升高。 cnki
The processability of friction spun core yarn in manufacturing textile preforms and textile structural composites was investigated.
本文研究了摩擦纺包缠纱纺织预型件及其复合材料的加工性能。 cnki
High quality preforms are important for discontinuously reinforced composites made by the pressure infiltration method.
采用压力浸渗方法制备非连续增强复合材料需要高质量的预制块。 dictall
In this paper the process of preparation of octa- potassium titanate whisker preforms by naturally sinking is introduced.
本文介绍了用自然沉降法制备聚八钛酸钾晶须预制件的生产工艺。 chemyq
In this paper, densification laws of rotary forging powder sintered preforms and the property of components have been investigated with orthogonal experiment method.
本文利用正交实验等方法在自行设计的实验装置上对粉末烧结体的摆辗致密规律及压实体的性能进行了研究。 cnki
On the simultaneity, the actual shape of the yarns in performs was observed, which will be beneficial to the foundation of the cell modal in preforms.
同时，通过实验观察了预成型件中纱线的实际形态，为三维六向编织预成型件单胞模型的建立奠定了一定的基础。 chemyq
Research status at home and abroad on manufacturing techniques of composites with interpenetrating networks and their preforms were summarized, with focus on the special feature of every one.
总结了国内外在网络互穿复合材料及其预制件的制备工艺方面的研究现状，并且指出了各种工艺的特点； chemyq
Resin impregnation was used to density carbon fiber preforms after they had been densified by chemical vapor deposition CVD.
将炭纤维坯体 CVD增密至不同密度，再对其进行树脂浸渍。 dictall
The results indicated that by HIPing porosities in the preforms can be closed and the densities can be increased, then the strength and ductility can be improved.
结果表明，热等静压处理可以闭合坯件内的疏松孔洞，提高合金致密度，进而提高合金的强度和塑性。 chemyq
The final yarn structures in composites have changed comparing with those in the preforms after which are impregnated with matrix and consolidated into the final shape.
与预制件相比，复合材料内部的纱线结构发生了变化，这种变化也体现在纤维体积分数以及其它结构参数上。 cnki
This article demonstrates the methodological principle and the way of design steps of3 dimensional preforms for fibre reinforced composites on conventional looms.
本文介绍传统织机织制纤维增强复合材料三维预型件的织造原理、方法及步骤。 cnki
This paper introduces the advantage of PCVD method and describes the long PCVD equipment for making optical fiber preforms, performance parameters and the overview of applications.
介绍了 PCVD制棒法的优点，描述了实用型 PCVD法制造光纤预制棒系统的设备组成内容、性能参数及其推广应用的前景。 cnki
This paper introduces the fabrication technology for knitted preforms. In-plane and out-of- plane Mechanical properties are studied which are compared with those of woven composites.
本文介绍了针织复合材料预型件的制造工艺：研究其面内和面外力学性能：并与机织复合材料进行了比较。 cnki
This paper presents the new technique for preparing the fiber preforms with large core and large N A by the conventional MCVD process.
本文介绍利用现有MCVD工艺制备大芯径、大数值孔径光纤预制棒的新工艺。 cnki
This analysis describes yarn structure of braided preforms after reducing- yarn and obtains the movement rule of braiding yarns.
通过对预制件的细观结构的研究，得到减纱后通过减纱截面纱线的运动走向和规律； cnki
This equipment possesses the ability to produce rapidly solidified fine alloy powders and atomizing deposition preforms.
该装置可用于制备快速凝固合金粉末或雾化沉积毛坯。 cnki
Three weaving methods of cone-shaped tubular woven preforms were discussed.
分析了三种锥形管状预成型机织物的织造方法。 dictall
Three-dimensional braid structural composites represent a class of advanced materials which are reinforced by fiber braid preforms for primary structural applications.
三维编织结构复合材料是一种采用纤维立体编织预成型品增强的高级复合材料。 ilib
With the fabricated preforms, the pressure casting process of porous aluminum alloy was studied.
利用所制备的预制块，研究了多孔铝合金的加压铸造工艺。 chemyq
Preforms with homogeneous distribution of large and small particles are made by ultrasonic dispersing technology.
用超声分散工艺获得了不同粒径颗粒分布均匀的预制件。 cnki |