preforms
英 [priːˈfɔːmz]
美
v. 预先形成[决定]; 把…初步加工
preform的第三人称单数
双语例句
- In the one-stage process, when the preforms cool to about110oC, the stretch and blow moulding process begins.
一步法是在瓶坯注塑后冷却到约110℃时做拉吹动作。 - Injection moulding of bottle CAPS is distinctly different from that of preforms in that it is thin-wall moulding.
与瓶坯注塑截然不同，瓶盖的注塑是薄壁注塑。 - Textile preforms with high level of pre-fabrication for fiber reinforced composites Most synthetic polymers are organic.
预成型纺织材料用于纤维增强复合材料大多数合成聚合物都是有机材料。 - Intermediate beaded or rolled edge multilayer metal preforms are made for transport to the final three dimensional stamping operation.
制成半成品卷边或滚压边的多层金属预成形件用于该产品的最终冲压成形加工工序。 - 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。 - EFFECT OF POROUS PREFORMS ON POROSITY OF PREPARED TiC/ Ni_3Al COMPOSITES Data prefetch optimization in dynamic binary translation
多孔预制件对TiC/Ni3Al复合材料孔隙率的影响动态二进制翻译中数据预取优化研究 - In the second stage, room temperature preforms are reheated, stretched and blow moulded into bottles, in a reheat stretch blow moulding machine.
第二步将室温的瓶坯再加热后，拉吹成为瓶子，是在另一台再加热，拉吹机上完成。 - Resultingly limitation of equipment, it is difficult to densify the spray deposited preforms with large dimension by extrusion.
而采用挤压等工艺，由于受到设备的限制，无法实现大尺寸坯料的变形。 - Structure and Properties of Self-Reactive Spray Formed Multi-Phased Ceramic Preforms
自反应喷射成型复相结构陶瓷的组织与性能 - Plastic shrinks during cooling. Holding packs more material in to take up the shrunk space so the preforms are without sink marks. Scheduled meetings and kept supervisor's calendar.
在冷却时间内，塑料不断收缩，而保压填补收缩了的空间，使瓶坯饱满，不会下陷。排会议时间，及保持上司的时间表正确。 - Experimental study on the compressibility of 3D braided carbon preforms
三维编织炭纤维预制件压缩性实验研究 - The structures of three dimensional ( 3 D) textile preforms and composites are discussed in this paper.
本文主要讨论了三维纺织预制件及其复合材料的结构特点。 - Study on the Compressibility of Fabric Preforms
织物预成型体的可压缩性研究 - A measuring method for thickness of carbon fiber three-dimensional braided composite material preforms by using eddy current sensor is put forward. The measuring principle, hardware components, and software are given, and the measuring data are analysed.
提出了一种利用电涡流传感器进行碳纤维三维编织复合材料预制件厚度测量的研究方法，给出了测量系统的测量原理、硬件组成及软件设计框图，并对测得的厚度值进行了分析。 - In order to solve the limitation of three-dimensional braiding in making preforms of complex shape, the technology of stitching joint three-dimensional braided composites is presented, and the creative feature as well as problems should be solved are expounded.
为了解决三维编织制作复杂形状异型件存在的局限性，文章提出了缝合连接三维编织复合材料技术，并阐述了其创新点和应该解决的问题。 - The Structural Design and New Weaving Technique of 3D Angle-interlock Preforms for Composites
复合材料用3D角联锁结构预制件的结构设计及新型织造技术 - 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。 - The production of three dimentional spherical reinforced preforms by means of one-side-sewing technology is presented.
介绍了通过单面缝纫技术生产三维球面增强预型件的方法。 - The research of braiding technique for preforms is vitally important because preforms are the frameworks of composites.
三维编织预型件是构成三维编织复合材料的骨架，故三维编织预型件的编织技术一直是一个很重要的研究领域。 - 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。 - Preforms with waveguide structure have been formed by using a built-in casting method.
用内铸法制得了具有波导结构的预制棒。 - Some problems of design for powder hot forging die have been discussed around the characteristics of forging deformation of powder preforms.
围绕粉未烧结体锻造变形的特点，讨论了粉末锻造模具设计的若干问题，并对一些粉末锻造模具进行了分析。 - 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； - 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。 - Compartmentalizing the unit cell reasonably is very important for the microstructure analysis of three-dimensional braided preforms.
单胞的合理划分对三维编织预成型件的微观结构分析具有重要作用。 - Preforms had no change in shape and dimension after infiltration, thus near-net-shape composites were easily achieved.
液态铝自发渗入后，SiC预成形坯无任何形状和尺寸的变化，易于实现近净成形。 - Stitch mode and overlay placements in the form will cause permeability changes in fabric preforms.
缝编方式和铺层形式会引起预型件织物渗透性的改变。 - Based on design results of different preforms, some important parameters of braiding process and braided preforms were studied.
然后，基于一些编织结构预制件设计结果，分别对编织工艺以及编织预制件主要参数进行系统研究分析。 - SiC preforms with different volume of porosity were obtained by modulating graphite content.
通过调整石墨含量，能获得不同孔隙率SiC预成形坯。 - SiC preforms were fabricated by adding pore-forming materials ( starch). And using pressureless infiltration technique, SiC/ Al composites were made.
采用添加造孔剂（淀粉）工艺制备了SiC预制体，用无压浸渗法制备了SiC／Al复合材料。