Aloe xiong kuo kan effectively prevents the melanin the formation , whitening skin , rich elasticity 芦荟熊果?铪陵芦?止黑色素的形成，令肌肤白哲细腻，富有弹性。
Quick : made with hi - tech aluminum alloy castings , it heats fast using conduction and saves 2 3 of the time Quick ：高科技铝铪金材质制成，导热快，烹煮时间节省2 3
Standard test method for determining hafnium in zirconium and zirconium alloys using the d - c argon plasma spectrometer 使用氢等离子体光谱计测定锆和锆合金中铪的标准试验方法
- zirconium and hafnium oxides - determination of phosphorus content - ascorbic acid reduced molybdoantimonylphosphoric acid absorption photometric method 氧化锆,氧化铪中磷量的测定
Method for chemical analysis of zirconium ores - determination of zirconium and hafnium contents - x - ray fluorescence spectrometric method 锆矿石化学分析方法x射线荧光光谱法测定锆量和铪量
Standard test method for corrosion testing of products of zirconium , hafnium , and their alloys in water at 680 f 360 c or in steam at 750 f 400 c 在750 f蒸汽中或在680 f水中锆铪及其合金产品的腐蚀测试的标准试验方法
The ultra - thin er layers with the thicanesses in the range of 0 . 5 ~ 3 monolayer ( ml ) are formed by electron beam evaporation on si ( 00l ) substrate at room temperature in an ultra - high vacuum system . after annealing at lower temperatures , ordered simcfores form on the surface . the trallsition of the surface reconsmiction pattem from ( 2 x l ) to ( 4 x 2 ) with the increase of er coverage up to l ml is observed by the reflective high energy electron diffraction ( rheed ) and low energy electron diffraction ( leed ) 本文是关于硅( 001 )衬底与电子束淀积的铒、铪原子反应形成的超薄膜的界面与表面性质的研究，以及在该衬底上出现的共振光电子发射现象，包括了以下四个方面的工作： 1铒导致的硅( 001 )衬底上的( 4 2 )再构研究利用反射高能电子衍射和低能电子衍射，在室温淀积了0
