单质

通过添加负催化剂的无机酸（A）、氧化物（B）和单质（C）到配煤中炼焦的方式把负催化剂负载到焦炭中，研究了它们对所得焦炭热性质的作用。

Adding negative catalysts as inorganic acid ( A ), oxide ( B ) and simple substance ( C ) into blending coal , thereby adding them into coke through coking process , the effects of negative catalysts on thermal property of coke was investigated .

元素是一种单质，它不可能再分成任何更单纯的物质。

An element is a simple substance that cannot be broken up into anything simpler .

以单质碘为催化剂，通过丁醛和乙二醇反应合成了丁醛乙二醇缩醛。

Butyraldehyde glycol acetal was synthesized from butyraldehyde and glycol by using iodine as catalyst .

溶剂热条件下单质直接反应合成GaP纳米晶

Synthesis of GaP nanocrystals by elemental reactions under solvothermal conditions

以单质Si、C原料制备反应烧结碳化硅的研究

Study on the Preparation of Reaction Bonded Silicon Carbide With Silicon and Carbon

X衍射分析表明，涂层中石墨以单质形式存在。

X-ray diffraction analyses show that the graphite exists as a simple substance in the coatings .

X射线衍射图谱表明纳米银颗粒为面心立方晶系的单质银，而且产品结晶性能良好。

The XRD curve shows that the silver nano-particle is face-centered cubic structure elemental silver with fine crystallinity .

单质Si对含TiO2刚玉制品烧结性能和相组成的影响

Influence of Si on sintering property and phase composition of TiO_2-containing corundum materials

其促进效果从大到小依次为酵母浸膏Fe2+Ni2+单质Fe。

The promote effect from high to low in turn is yeast extract Fe2 + Ni2 + Fe .

载体对CO还原SO2到单质硫铁基催化剂性能的影响

Effect of support on catalytic property of Fe catalyst for sulfur dioxide reduction to elemental sulfur by carbon monoxide

以单质硫和FCC馏分油为原料合成有机硫化剂。

Polysulfides was synthesized using FCC gasoline and sulfur .

在细菌代谢过程中，单质Fe具有提高细菌发酵产氢能力的作用。

In bacterial metabolism process , pure Fe can increase the ability of ferment and pro hydrogen of bacterial .

X射线衍射分析表明，载银二氧化硅表面覆盖的为具有面心立方结构的纯单质银，无氧化银等杂质。

X-ray diffraction revealed that the surface of SiO2 was surrounded by pure silver , and the silver had face-centered-cubic structure .

XPS显示银以银单质和银离子两种形式存在。

XPS showed that Ag existed in 2 forms : silver and silver ions .

单质TiO2双层减反射薄膜的实验研究

Study on Double Layer Anti-Reflection Coating of TiO_2 / TiO_2

单质吸附与竞争吸附中，重金属吸附随温度、pH、离子强度的影响变化趋势相似。

( 4 ) In elemental adsorption and competition absorption , adsorptions of heavy metal with temperature , pH , and ionic strength were similar .

铜对Mn/Al2O3氨还原SO2到单质硫催化性能的影响

Effect of copper component on catalytic property of mn / al_2o_3 for reducing so_2 to elemental sulfur with ammonia

针对纳米晶（NC）单质金属材料的腐蚀特性，研究了块体纳米晶铜的耐蚀性能。

To examine the corrosion performance of pure nanocrystalline ( NC ) metal , the corrosion behaviors of NC copper bulk was investigated .

Fe，Co，Ni/MgO对氨还原SO2到单质硫的催化性能

Study on the catalytic properties of fe , co , ni / mgo catalysts for reduction of sulfur dioxide by ammonia to elemental sulfur

通过对该硫磺渣进行X射线衍射和化学分析表明，元素硫的总含量为61.06%，大部分以单质的形式存在（占总硫80%以上），少量以金属硫化物、硫酸盐的形式存在。

The sulfur residue contains 61.06 % of sulfur , most of which exist as elementary substance ( 80 % ) a little exist as compound .

XRD测试结果表明纳米镍体相以单质态存在，但其特征谱线的d值普遍增大；

XRD measurement shows that the bulk phase of nano Ni is simple substance , whose d values of characteristic spectrum totally increase .

研究利用硫酸盐还原菌（sulfatereducingbacteria，SRB）与单质铁协同作用处理含Zn2+废水的效果和相应机理。

The treatment of wastewater containing Zn ~ ( 2 + ) by sulfate reducing bacteria cooperated with Fe ~ 0 was studied .

黄铁矿表面次生色的变化取决于表面氧化层的厚度及其中Fe（Ⅲ）O组分、单质硫的相对含量。

The secondary surficial color depends on the depth of an oxidized layer and the contents of Fe (ⅲ) O ingredient and native sulfur in the layer .

采用直接催化还原SO2为单质硫的工艺过程不仅可以消除SO2污染，而且可以回收单质硫。

Direct catalytic reduction of SO2 to elemental sulfur can not only remove SO2 pollution but also obtain elemental sulfur .

N80钢的腐蚀膜主要是由晶态FeCO3构成的，还夹杂着少量Fe的氧化物、碳化物和单质Fe等。

The major component of the corrosion scales were FeCO_3 , some oxide , carbide of Fe and pure Fe .

建造了小型多功能实验台，并用模拟烟气在该实验台上研究了HCl对煤燃烧后烟气中的氧化态Hg和单质态Hg分布比例的影响。

A bench-scale experiment was conducted to study the effects of HCl on the mercury speciation distribution in coal-fired flue gases .

回收利用的CdS光催化性能降低；这是由于CdS不稳定，在空位离子的攻击下，金属单质Cd不断地沉积在CdS颗粒表面，从而阻碍了半导体的光催化活性。

Efficiency of recycled CdS semiconductor becomes lower due to the elemental Cd deposit on the surface of CdS , which blocks the photocatalytic reactivity .

一直以来铁被认为是氧化H2S成为单质硫的有效催化剂。

Iron has long been known to be an effective catalyst for the oxidation of H2S to elemental sulfur .

通过元素分析、红外光谱、XPS能谱、XRD分析、DSC／TG分析、扫描电镜等多种现代分析手段表征了复合材料的结构和成分，并研究了单质硫催化聚合物脱氢硫化反应的机理。

The structures and components of the resulted composites were characterized by FTIR , XPS , XRD , SEM , element analysis and DSC / TG .

在相似培养条件下，单质Fe与Fe2+均可诱导细菌代谢向乙醇型发酵转化，其中单质Fe的作用能力优于Fe2+；

In similar culture condition , pure Fe and Fe 2 + can all lead bacterial metabolism into Ethanol type fermentation , and pure Fe acted prior to Fe 2 + .