铪字的意思

那么是如何知道火星有铪- 187的呢？

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

铪的化学形态为过氯酸盐或硝酸盐。

Chemical form of hafnium is perchlorate or nitrate.

锆铪分离是制备紫外级氧化铪的关键。

The separation technique between Zr and Hf was the key of the UV grade HfO2 production.

我要求呃剐交易全铪退款。

I demand a full refund for this purchase.

用碘化物热分解法由铪加工残料生产铪晶棒。

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

添加铪是改善合金中温性能的有效途径之一。

Addition of Hf to a superalloy is one of the effective approaches to improve its mid-temperature properties.

加入铪增加了合金的成本，从而限制了其应用。

The addition of Hf increases the cost of these alloys, and may cause a number of problems which limit their usage.

具体地，本发明提供的金属叠层包括：铪基介质；

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

锆铪分离技术是生产核级锆和核级铪的核心技术。

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

铪丝的生产工艺以及铪丝生产过程中应注意的问题。

The essential properties of Zirconium, preparation of Hf, process for producing Hf wire, and some noteworthy matters in process were briefly introduced.

这主要是因为数量的铪，利用一个芯片，是微乎其微的小。

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

概述了近年来多元络合物在锆铪光度分析中的应用情况。

This review deals with the present applications of multicomponent complex in spectrophotometric analysis of Zr and Hf.

用磁控反应溅射法在不同氧分压下制备了氮氧化铪薄膜。

HfOxNy thin films were deposited by radio frequency reactive magnetron sputtering onto multi-spectral ZnS substrates at different oxygen partial pressure.

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。

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

研究了以氢氧化钠代替碳酸钠拌和锆英砂冶炼锆、铪稀有金属的新工艺。

A new process of metallurgy of rare metals zirconium and hafnium with caustic soda instead of sodium carbonate to rub up zircon is examined.

主持国家自然科学基金项目“铁铪双掺铌酸锂晶体的光散射起源研究”。

Project Director, Research Project "Origin of light-induced scattering in lithium niobate doubly doped with Fe and Hf", National Natural Science Foundation.

第一，他们在装置的上处理和涂上铪，钼，钛氧化物层，这层物质仅有100纳米厚。

The first they dealt with by coating the top of the device with oxides of hafnium, molybdenum and titanium, in layers about 100 nanometres thick.

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。

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

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。

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

随着铪含量的提高，合金的中温持久性能，特别是中温横向持久性能有所提高。

With increasing Hf content the stress-rupture properties, in particular, the transverse stress-rupture properties of alloy DZ_22 at intermediate temperature are obviously enhanced.

在局域热动平衡条件下，采用简化后的超跃迁阵模型分析热密铪等离子体的光谱。

Under local thermodynamic equilibrium conditions (LTE), the simplified STA model is used to analyze the spectrum of the hot and dense Hf plasmas.

主持人社部留学回国人员择优资助项目“掺铪系列铌酸锂晶体中的缺陷系统研究”。

Project Director, Research Project "Study on defect system of Hf-doped lithium niobate crystals", Ministry of Human Resources and Social Security.

本论文中，我们尝试使用一氧化二氮电浆氮化处理，以改善二氧化铪闸极介电层的品质。

In this thesis, we try to use post-deposition N2O plasma nitridation to improve the HfO2 film quality.

我们认为碳纳米管表面发射性能的提高归功于表面碳化铪膜良好的导电性、学惰性和低逸出功。

The improvement field emission by hf coating on CNTS surface is attributed to the low work function chemical inertness and good conductivity of HFC.

氮化镓是增长了等离子体辅助(111)和分子束外延(001)硅衬底上氮化硅缓冲层使用铪。

Gallium nitride is grown by plasma-assisted molecular-beam epitaxy on (111) and (001) silicon substrates using hafnium nitride buffer layers.

我们认为碳纳米管表面发射性能的提高归功于表面碳化铪膜良好的导电性、化学惰性和低逸出功。

The improvement field emission by Hf coating on CNTs surface is attributed to the low work function, chemical inertness and good conductivity of HfC.

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。

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

研究了在氩氧控制气氛条件下锆中铪的分析条件，对氩氧比、激发电流、曝光时间等实验参数进行了选择。

A method for determination of hafnium in zirconium under Ar-O_2 controlled atmosphere was developed and the conditions of ratio of Ar-O_2, excited current and exposed time were optimized.

酸性含磷萃取剂和醚类萃取剂对锆铪分离有较好的效果，对其萃取机制、热力学和动力学等基础性研究较多。

The basic studies, such as mechanism, thermodynamics and kinetics, on the acidic phosphorus-containing extractant and the ether extractant were performed for their good effect.

酸性含磷萃取剂和醚类萃取剂对锆铪分离有较好的效果，对其萃取机制、热力学和动力学等基础性研究较多。

The basic studies, such as mechanism, thermodynamics and kinetics, on the acidic phosphorus-containing extractant and the ether extractant were performed for their good effect.