Copper alloys have many excellent properties and have become important materials for making lead frames.
铜合金具有诸多优良的性能，因而成为重要的框架材料。
Lead frames, especially those made of copper alloys, are among the most important parts for electronic IC devices.
引线框架材料是电子工业不可或缺的重要组成部分，而铜合金框架材料又占其中的大部分。
The automatic cutting system is a special equipment for processing the lead frames of semiconductor ICs after encapsulation.
自动冲切成形系统是半导体集成电路封装引线框架后的加工专用系统。
There has a new demand for the lead frames, which is not only a good chance but also a challenge for our country under the condition of poor basis.
在我国引线框架材料开发研制起步晚，基础薄弱的情况下，无疑既是一个挑战，又是个机遇。
The facades are covered with local stone contrasting with the industrial architecture and big horizontal window frames, and lead the eyes toward the outdoors.
立面覆盖有当地的石材与工业建筑和大的水平窗框形成对比，引导朝外的视线。
Such a study might lead us to rethink about the conceptual frames of some parenthetical structures, and has some im…
类似研究有助于我们重新认识与作格有关的部分附属结构的概念框架，同时对语言习得研究也具有重要的启示意义。
The conclusion is that, when the length of fiber is fixed, different frames lead to different threshold, and the FWHM is different.
得出在光纤长度一定时，腔结构的改变导致腔损耗及激光产生阈值的改变，进一步导致激射中心波长FWHM变化的结论。
The conclusion is that, when the length of fiber is fixed, different frames lead to different threshold, and the FWHM is different.
得出在光纤长度一定时，腔结构的改变导致腔损耗及激光产生阈值的改变，进一步导致激射中心波长FWHM变化的结论。
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