preforms

简明释义

英[ˈpriːfɔːmz]美[ˈpriˌfɔrmz]

n. 焊料预成型（preform 复数）

v. 预先形成（preform 的第三人称单数）

英英释义

单词用法

同义词

反义词

例句

1.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。

2.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。

3.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。

4.The series could handle 1-litre mineral water bottle preforms from 16 to 48 cavities.

该系列可处理一公升的矿泉水瓶瓶坯，从16日至48溶洞。

5.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。

6.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。

7.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。

8.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。

9.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。

10.Before the final assembly, the team preforms 预制 all the components to ensure quality.

在最终组装之前，团队 预制 所有组件以确保质量。

11.In manufacturing, the process preforms 预制 parts to reduce waste and improve efficiency.

在制造过程中，预制 部件以减少浪费并提高效率。

12.The factory uses advanced machinery that preforms 预制 plastic bottles before they are molded.

工厂使用先进的机器，预制 塑料瓶，然后再进行成型。

13.The artist preforms 预制 the clay into shapes before firing them in the kiln.

艺术家将粘土 预制 成形状，然后在窑中烧制。

14.They preforms 预制 the metal sheets to create a stronger final product.

他们 预制 金属板以创造更强的最终产品。

作文

In the world of manufacturing and design, the term preforms refers to shapes or structures that are created as preliminary forms before undergoing further processing. These preforms serve as the foundation for various products, allowing manufacturers to streamline their production processes and enhance efficiency. For instance, in the production of plastic bottles, the initial stage involves creating preforms that resemble small test tubes. These preforms are then heated and blown into the final bottle shape. This method not only saves time but also reduces material waste, making it a preferred choice in modern manufacturing.The significance of preforms extends beyond just the production of bottles. In the textile industry, preforms can refer to the precut fabric pieces that are assembled to create garments. By using preforms, designers can achieve a more efficient workflow, as they have already determined the necessary shapes and sizes of the fabric pieces needed for each design. This approach minimizes errors and enhances the overall quality of the finished product.Moreover, in the field of 3D printing, preforms play a crucial role in ensuring that the printed object maintains its desired properties and dimensions. The preforms are designed with specific parameters that dictate how the final product will behave under various conditions. This is especially important in industries such as aerospace and automotive, where precision and reliability are paramount.Understanding the concept of preforms is essential for anyone involved in product development or manufacturing. It highlights the importance of planning and preparation in the creation process. By utilizing preforms, companies can not only improve their production timelines but also enhance the quality and durability of their products. This proactive approach allows businesses to stay competitive in a fast-paced market.In conclusion, preforms are an integral part of many manufacturing processes. They serve as the building blocks for a wide range of products, from plastic containers to intricate textile designs. By focusing on the creation of preforms, industries can optimize their workflows, reduce waste, and ensure that the final products meet the highest standards of quality. As technology continues to advance, the role of preforms will likely evolve, but their fundamental importance in the manufacturing process will remain constant. Embracing the use of preforms is not just a trend; it is a strategic move towards efficiency and excellence in production.

在制造和设计的世界中，术语preforms指的是在进一步加工之前创建的形状或结构。这些preforms作为各种产品的基础，使制造商能够简化生产过程并提高效率。例如，在塑料瓶的生产中，初始阶段涉及创建类似小试管的preforms。这些preforms随后被加热并吹制成最终的瓶子形状。这种方法不仅节省了时间，还减少了材料浪费，使其成为现代制造业的首选。preforms的重要性不仅仅限于瓶子的生产。在纺织行业中，preforms可以指为创建服装而预切的面料片。通过使用preforms，设计师可以实现更高效的工作流程，因为他们已经确定了每个设计所需的面料片的形状和大小。这种方法最小化了错误并提高了成品的整体质量。此外，在3D打印领域，preforms在确保打印物体保持所需的特性和尺寸方面发挥着至关重要的作用。这些preforms是根据特定参数设计的，这些参数决定了最终产品在各种条件下的表现。这在航空航天和汽车等行业尤为重要，因为精确度和可靠性至关重要。理解preforms的概念对于任何参与产品开发或制造的人来说都是必不可少的。它突显了在创建过程中计划和准备的重要性。通过利用preforms，公司不仅可以改善生产时间表，还可以提高产品的质量和耐用性。这种主动的方法使企业能够在快速发展的市场中保持竞争力。总之，preforms是许多制造过程中的一个重要组成部分。它们作为从塑料容器到复杂纺织设计的广泛产品的构建块。通过专注于preforms的创建，各行业可以优化其工作流程、减少浪费，并确保最终产品符合最高的质量标准。随着技术的不断进步，preforms的角色可能会演变，但它们在制造过程中的基本重要性将保持不变。接受使用preforms不仅仅是一种趋势；它是朝着生产效率和卓越的战略举措。