preform的例句大全

Cooling time dominates cycle time in thick-wall moulding like preform moulding.

属厚壁注塑的瓶坯，冷却时间支配着周期时间。

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Effect of Preform on Properties of C/ C Sealing Materials

预制体对C/C密封材料性能的影响

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When all yarns of preform in jamming condition, The biggest yarn volume fraction of right face model is equal to that of inner cell of 45 ° model, but not equal to that of surface cell and coner cell.

在紧密结构状态下，1×1编织预型件正模型的纱线体积分数和45°模型的内部单胞的纱线体积分相同，但与表面单胞和角单胞的纱线体积分数不同。

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The preform performance of CCCs are predicted by establishing the model of macro-mechanical properties of CCCs related to fine structure parameters of fiber preform.

可通过建立CCCs宏观力学性能与预制体细观结构参数之间的模型预测其结构性能。

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Taking C/ C composites of different structure and density as preform, C/ SiC composites were prepared by reactive melt infiltration. The relationship among density, component content, thermal diffusion coefficient and friction properties of C/ SiC composites was studied.

以不同结构类型及密度的C/C复合材料为预制体，采用反应熔体渗透法制备了C/SiC复合材料，研究了不同结构C/SiC复合材料的密度、组分含量、热扩散系数与摩擦性能相互之间的关系。

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Densification mechanism of preform with thermal gradient CVI

热梯度化学气相沉积动力学过程的探讨

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HEAT TRANSFER OF MOLTEN METAL INFILTRATE THROUGH SiC PREFORM IN CENTRIFUGAL FORCE FIELD Kinetics of Solvent Evaporation in High Temperature flux for Growth of Neodymium Aluminium Borate Crystal

高温金属熔液在旋转多孔介质内的渗流传热过程生长硼酸钕铝晶体的高温熔液体系的挥发动力学

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Study on Densification Mechanism of Unidirectional Carbon Carbon Composites by Chemical Vapor Infiltration DENSIFICATION MECHANISM OF PREFORM WITH THERMAL GRADIENT CVI

单向碳/碳复合材料的化学气相渗透特征热梯度化学气相沉积动力学过程的探讨

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The improvement of adding titanium for molten copper infiltration into the C/ C composites preform results from the improvement of the chemical and physical adsorption characteristic of copper on the composites.

添加钛元素能改善C/C复合材料渗铜性能的主要原因是改善铜在C/C复合材料中的化学吸附和物理吸附特性；

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Focusing method for nondestructive measurement of optical fiber and preform index profile

聚焦法非破坏性测试光纤和预制棒的折射率分布

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Three-dimensional ( 3D) woven fabric is a type of advanced textile preform and reinforcement of polymer composite with 3D fiber architecture is an effective method to overcome the delamination problem encountered in composites reinforced with a two-dimensional ( 2D) fiber structure.

三维机织物是一种先进纺织结构的纤维预制件，使用三维结构的纤维预制件作为聚合物基复合材料的增强体，是传统的两维结构纤维增强聚合物基复合材料易分层问题的有效解决途径。

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Research on Stitch of Composite Preform Measured Based on the Wavelet Transform

基于小波变换的复合材料预制件花节长度测试研究

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Finite element simulation of hot die forming and optimization design of preform for a blade with large-angle crankle

大弯扭叶片热模压成形有限元模拟及其预制坯的优化设计

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Desirable infiltration results can be obtained to fabricate A12O3/ A1 composite by means of both laying alloy on perform and pressing preform into alloy.

采用合金上置法和模块压入法制备A12O3从复合材料皆可获得比较理想的浸渗效果。

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A mandrel mill hydraulic screwdown control was successfully established at Wakayama Steel Works of Sumitomo Metal Industries, Ltd, in 1985. The control is used to preform tube ends into a thinwalled taper during rolling.

一套连轧管机油压压下控制系统于1985年在日本住友金属公司和歌山钢铁厂使用成功。此控制系统用于在轧制中控制管端，使管端减壁形成圆锥体。

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This paper shows the procedures of preform optimization design using the modified ACA model in forging process. And a basic system used for preform optimization design is established by combining the ACA with FEM.

本文给出了应用该改进蚁群算法对锻造过程中预成形进行优化设计的步骤，结合蚁群算法程序以及有限元模拟模块程序，建立了基本的预成形设计系统，介绍了系统各个模块的功能。

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The prepared C/ CF reinforced Cu matrix composites with good sound interface and higher tensile strength may be obtained, preferably with C/ CF wire preform in 40~ 60 μ m copper plating thickness.

在C/CF先驱丝表面镀铜厚度为40～60μm，有助于制备界面结合良好和抗拉强度较高的C/CF/Cu基复合材料。

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a holey fiber can be produced by drawing the holey porous preform, after having submitted it to a consolidation process.

可通过将多孔疏松预制棒送入固结工序之后拉丝该多孔疏松预制棒而制造多孔光纤。

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the silica bar may be a supporting silica bar of a glass working lathe support for overhanding the primary preform.

二氧化硅棒可以是用于将给初始预型体涂上包层的玻璃制品加工车床支架的支撑二氧化硅棒。

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The processing influence on the mechanical properties of silicon carbide matrix composites is reviewed, which includes fibers and preform formation, high temperature treatment, interface technology, matrix densification and post treatment.

介绍了纤维及预制体成型、高温处理、界面技术、基体致密化及后处理等工艺因素对碳化硅基复合材料机械性能的影响。

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