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lead-free

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lead-free是什么意思
英式音标:[ˌled ˈfri:]
美式音标:[ˌledˈfriː]
词汇分类:柯林斯Cobuild词频 • 0星词汇 ☆☆☆☆☆
词义:

adj.

无铅的;

英英释义

lead-free[ 'ledfri: ]

adj.(of gasoline) not containing tetraethyl lead

"lead-free gasoline"

同义词:nonleaded

用法:

双语例句

用作形容词(adj.)

Copper has less resistance than lead.
铜的电阻比铅的小。

Zinc can also help the body fight lead absorbance.
锌也可以帮助体内减少对铅的吸收。

权威例句

Lead-free piezoceramics

Lead-free Solders in Microelectronics

Lead-free piezoelectric ceramics: Alternatives for PZT?

(Na 0.5 K 0.5 )NbO 3 –LiTaO 3 lead-free piezoelectric ceramics

Advances in lead-free electronics soldering

Properties of lead-free solder alloys with rare earth element additions

Current status and prospects of lead-free piezoelectric ceramics

Bi1/2Na1/2)TiO3-BaTiO3 system for lead-free piezoelectric ceramics. Jpn J Appl Phys

Effects of intermetallic compounds on properties of Sn–Ag–Cu lead-free soldered joints

Recent advances of conductive adhesives as a lead-free alternative in electronic packaging: Materials, processing, reliability and a...
同义词:unleaded
造句:

1. Generally the same fluxes will work for lead-free solder.

一般来说,相同的焊剂用于无铅焊料是有效的。

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2. Introduced preparation results of one new kind bone China lead-free glaze.

介绍了一种骨灰瓷用无铅釉的研制结果。

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3. Therefore, a lot of problem arises as more and more Lead-Free Soldering takes place.

因此,越来越多的无铅焊锡出现了很多问题。

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4. You should not have to change your stencil design to accommodate the change to lead-free.

您不需要为更换无铅锡膏而更改钢板设计。

youdao

5. The article introduces a kind of composite material CEM-3 of CCL for lead-free soldering.

本文介绍了一种适用于“无铅”焊接的复合基cem - 3覆铜板的研发。

youdao

6. Finally we introduce some contents about the reliability ensure for the lead-free products.

最后介绍了一些有关最新的无铅产品的可靠性保证方面的内容。

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7. Nitrogen Protection is used in practical industry because of poor wettability of lead-free solder.

由于无铅钎料润湿性较差,在实际生产中普遍采用氮气保护。

youdao

8. Rhenium is used to make high-temperature alloys for jet engine parts and in high-octane, lead-free gasoline.

铼可以用来制造喷气式发动机的耐高温合金部件,也是高能量的无铅汽油的成分。

youdao

9. Central Plains region is the most experience and strength of the manufacturers of lead-free wave soldering.

兴中原公司是东南亚地区最具经验与实力的无铅波峰焊制造商之一。

youdao

10. In the industry is the most modern of technology, the most powerful professional equipment manufacturers of lead-free.

在业界是最具现代之科技、最有实力的专业无铅设备生产商之一。

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11. BNKLT lead-free piezoelectric ceramics invented in authors' group were used for making middle frequency ceramic filters.

采用本组发明的BNKLT系无铅压电陶瓷,研制了中频陶瓷滤波器。

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12. The disadvantages of three typical lead-free solders, and three problems in the conductive adhesive study are discussed.

文中介绍了三种典型无铅焊料体系的不足之处,以及银导电胶研究中的三个难题。

youdao

13. In combination of our recent results, the current status and prospect on lead-free solders has been introduced in detail.

结合我们的研究成果,详细介绍了无铅钎料开发的现状及前景。

youdao

14. In combination of the recent results, the current status and prospect on lead-free solders has been introduced in detail.

结合目前的研究成果,详细介绍了无铅钎料开发的现状及前景。

youdao

15. This article take Japan as an example, introduce technical topic and development direction of low temperature lead-free solder.

文章以日本为例,介绍低温无铅焊料的技术课题与开发方向。

youdao

16. This lead-free fuel requirement, in turn, significantly reduces the amount of lead (and other metal additives) in the atmosphere.

这种对无铅燃料的要求相应也显著地减少了大气中的铅含量(和其他金属附加物)。

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17. Each sculptural planter is made-to-order with handmade glass and lead-free solder and comes with everything you need but the plants.

每个艺术花盆都是定制的。它们由手工制作的玻璃和无铅焊料接合而成,交付使用时,万事俱备,只欠花卉。

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18. It is unavoidable that lead-free solders are applied in SMT field in view of the environmental protection and the competitive motivation.

无论是环境的要求还是作为竞争的筹码,无铅钎料在表面组装领域中的应用已经是不可回避。

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19. This paper reports the development and the application detail of cobalt-free, lead-free and environmentally friendly exhaust valve seat insert.

这篇论文详细报道了无钴、无铅及有利于环境的排气阀座圈的开发与使用。

youdao

20. Through the strict implementation of lead-free technology, we will continue to improve our product quality and continue to meet customer demand.

通过严格执行无铅工艺,我们将持续提高我们的产品品质,一如既往地满足客户的需求。

youdao

21. Which lead-free wave soldering , lead-free reflow after several years of research and development, has now reached international advanced level.

其中无铅波峰焊、无铅回流焊经过几年研究开发,目前已达到国际先进水平。

youdao

22. But the use of Lead-free soldering isn't widely received, due to lack of a accepted international standard, and influence of technology? Cost, etc.

但无铅化尚缺乏公认的国际标准,并受技术、成本等因素的影响,无铅焊接的推广没被广泛接受。

youdao

23. The main products are: solder wire, lead-free solder bar, line, lead-free solder paste, strips, tin ingots, flux, electroplating anode, babbitt, etc.

主要产品有:焊锡丝、焊锡条、无铅锡线、无铅锡条、锡膏、锡锭、助焊剂、电镀阳极棒、巴氏合金等。

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24. Catalytic converters reduce carbon monoxide, oxides of nitrogen, and volatile organic compounds in emissions and necessitated the use of lead-free fuel.

催化转炉减少了一氧化碳,氧化氮和挥发性有机混合物等的排放,而且无铅燃料的应用也当成为必要。

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25. Thermal fatigue life of lead-free solder joint of Air-conditioner PCB (Printed Circuit Board) under the form of THT (Through Hole Technology) is studied.

本文对空调器印刷电路板(PCB)通孔插装形式无铅焊点的热疲劳寿命进行了研究。

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26. In the process of lead-free, because of the difference of lead-free solders and adjustment of technical parameter, we will face many new problems of reliability.

在无铅化进程中,由于无铅焊点焊料的不同和焊接工艺参数的调整,必然会给焊点可靠性带来许多新的影响。

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27. In order to predict failure location of BGA lead-free solder joints under a drop impact, ABAQUS software is used to analysis stress distribution of the solder joints.

为了预测跌落碰撞下球栅阵列(BGA)封装中无铅焊点的失效,采用ABAQUS软件来模拟跌落碰撞过程中焊点的应力分布。

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28. However, many problems such as materials selection, soldering process and device, system compatibility are still obsessing the development and application of lead-free solders.

然而无铅化仍然存在材料、工艺、设备、系统兼容等问题。

youdao

29. The solder alloys especially the lead-free solder alloys become the focus of study because of the quick development of the microelectronics and the surface mount technology (SMT).

随着微电子表面组装技术的迅猛发展,软钎料尤其是无铅钎料逐渐成为研究的焦点。

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30. Research progress of lead-free solder, invalidation models of solder joint, solder joint reliability evaluation and the defects of solder joints in recent years have been reviewed.

笔者就近年来国内外开发的无铅焊料、焊点的失效模式、焊点可靠性评价方法和焊点的主要缺陷进行了综述;

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lead-free

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