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1·And how is it known that Mars had hafnium-187?

那么是如何知道火星有铪- 187的呢？

2·Chemical form of hafnium is perchlorate or nitrate.

铪的化学形态为过氯酸盐或硝酸盐。

3·Mainly because the quantity of hafnium, utilized in one chip, is negligibly small.

这主要是因为数量的铪，利用一个芯片，是微乎其微的小。

4·Specifically, the present invention provides a metal stack comprising a hafnium-based dielectric;

具体地，本发明提供的金属叠层包括：铪基介质；

5·The extraction separation process for zirconium and hafnium with MIBK was briefly reviewed in this paper.

简要评述了用甲基异丁基酮（ MIBK） 萃取分离锆铪方法的基本原理、分离工艺和条件、萃取设备。

6·The hafnium crystal bar was produced by the iodide decomposition method from wast material of processing.

用碘化物热分解法由铪加工残料生产铪晶棒。

7·The post-irradiation effects of 30% TBP-Kerosene-HNO3 systems have been investigated by means of the hafnium number test.

本文借助铪指数实验研究了30％TBP-煤油-硝酸体系的辐照后效应。

8·The technology for separation of zirconium and hafnium is the key to prepare reactor-grade productions of zirconium and hafnium.

锆铪分离技术是生产核级锆和核级铪的核心技术。

9·So the research of preparation of ceramic scintillators containing hafnium compounds or hafnium has been becoming more and more popular.

因此制备铪化合物或含铪化合物的闪烁陶瓷，是近年的新材料研究热点之一。

10·Perhaps the most important use of sodium metal is as a reducing agent in producing high melting point metals, such as titanium and hafnium.

也许金属钠最重要的用途是作为还原剂生产高熔点金属，比如钛和铪。