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According to the radius of doping metal ions and lattice parameter of doping samples, it was confirmed that doping metal ions replaced the Mn〓 of spinel LiMn〓O〓.

根据掺杂阳离子的半径和掺杂对尖晶石LiMn〓O〓晶格常数的影响规律确定了掺杂阳离子是进入到原来Mn〓占据的位置。

To 6500m a.s.l.. In September 1998, an 80.36m ice core was also recovered in accumulation zone of the East Rongbuk Glacier on the northern slope of Mount Everest. The ice core was dated by seasonal variations of δ〓O (measured by Mat-Plus gas isotopic mass spectrograph with precision of 0.5‰) and major ions (measured by DX-2010 ions chromatography with precision of ng/L), together with the references of β activity peaks. Annual net accumulation was reconstructed based on the dating and density profile of the ice core.

此外,笔者还参加了1998年9月东绒布冰川80.36m冰芯的钻取工作。1999-2000年,在实验室内对上述样品进行了δ〓O测量(在中科院寒区旱区环境与工程研究所冰芯与寒区环境开放研究实验室用Mat-Plus气体稳定同位素质谱仪测量,以δ〓O平均值为-20.05‰的希夏邦马峰地区大气降水作为标准水,测量精度为0.5‰)、主要可溶性阴阳离子浓度的测定(在美国新罕布什尔大学气候变化研究中心进行,测试仪器为DX-2010型离子色谱仪,其测量精度可达ng/L)以及β活化度的测量(在美国新罕布什尔大学气候变化研究中心进行),并以此为基础尝试重建了该冰芯的年代和净积累量。

Halogen ion can enter and break the phosphate glass network when they exceed certain content. The short range structure of metaphosphate and polyphosphate glasses are all built with phosphate chains. Most of lead ions still act as network modifiers, and some lead ions enter glass network to form tetrahedron or Pb-O-P linear linkages.

Br〓和F〓离子达到一定浓度时就会进入网络,使得玻璃网络发生断裂。P〓O〓含量为50mol%和40mo1%的玻璃样品结构都为链状结构,一部分pb〓离子进入玻璃网络中作为网络形成体,形成四面体或Pb-O-P键:而大部分的pb〓离子仍然作为网络修饰本。

The results showed that nutrient ions were further absorbed and transported selectively and the harmful ions of salt were further restrained with the application of nitrogen and phosphorus. It is an effective way to increase saline tolerance and seed yield of oil sunflower by the use of nitrogen and phosphorus in the coastal mudflat of northern Jiangsu.

说明N肥和P肥的施入增强了油葵对营养离子的选择性吸收与运输,抑制了油葵对盐害离子的选择比吸收与运输,表明在苏北沿海海涂上施用肥料能够改善油葵营养状况并增强油葵耐盐性,对于增加油葵籽粒产量是一个很有效的办法。

In order to investigate the tempo-spatial characteristics of negative air ions distribution in Guangzhou from September to November of 2008, we choosed typical plot to make scientific researches, which including the monthly variation of air negative ions, the influences of types of functional zones, sampling timeinterval and typical habitat on air negative charge ion concentration.

为研究广州市下半年空气负离子分布的时空特征,利用空气离子测量仪,在广州市选择典型的采集地,分析了广州下半年空气负离子的月际变化以及功能区类型、取样时段、典型环境对空气负离子浓度的影响。

Cu and Co ions are coordintated with six oxygen atoms from two water molecules and four ligands to form an octahedral geometry. Each ligand links two metal ions in a μ2-bridge coordination mode and two-dimensional wavelike structures are formed.

Cu和Co均为六配位,八面体构型,每个金属离子与4个配体和2个水分子配位,每个配体采取μ2-桥联模式,形成二维层状结构。

Determination of dissolved fluoride, chloride, nitrite, orthophosphate, bromide, nitrate and sulfate ions, using liquid chromatography of ions.

液态离子色谱法测定溶解的氟化物、氯化物、亚硝酸盐、亚磷酸盐、溴化物、硝酸盐和硫酸离子。

Electron Beam Ion Trap uses highly compressed electron beam to ionize ions and atoms to produces highly charged ions. lonization stages of almost any element in the Periodic Table can be produced and trapped for several hours in the EBIT.

电子束离子阱用磁场中高度压缩的高能电子束来电离离子以获得高价态离子,它可以产生元素周期表中任何元素任何价态的离子,并且能够在EBIT中的强磁场和静电势阱中约束足够长的时间。

The stronger and more coordinate bonds between anionic phenolate groups and Fe ions in higher oxidation state prevented the dissociation of central ions.

这些基团的引入提高了中心金属Fe的价态,并增加了配体的电子云密度从而调节了Fe的氧化还原电位。

Different product ions were observed in positive ion mode, while almost the same product ions were observed in negative ion mode.

结果显示,二者在负离子模式下的碎片相同,而在正离子模式下的碎片裂解不同。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。