单质,simple substance
1)simple substance单质
1.The elements in periodic table, such assimple substance mineral exist in nature, with its main physical and chemical characteres, find dxpress in clear drawing and vividly demonstrate experiment.运用多媒体电化教学手段，借助Ｓ－ＶＨＳ型摄像机、ＢＶＥ－８００编辑机及带编辑功能的ＢＶＵ－８５０Ｐ录像机等先进的设备，拍摄了实物元素周期表录像片，将元素周期表中元素的单质、存在于自然界的矿物以及它们的主要物理、化学性质，通过清晰的画面、生动的演示实验形象逼真地表现出来。
英文短句/例句
1.This kind of summer clothing is simple and unaffected in style.这种夏服款式，简单质朴。
2.This substance can be reduced to a single chemical and oxygen, by passing an electrical charge through it.该物质可电解成一种化学单质和氧气。
3.a simple substance, mixture单纯的物质、 混合物
4.A single sheet of this material.纸张这种物质的单张
5.a unit of measurement for mass.用于测量质量的单位。
6.a simple protein found in plants.植物中的简单蛋白质。
7.metric-technical unit of mass质量的米制技术单位
8.a flexible container with a single opening.有单一开口的软质容器。
9.single cell protein by methanol甲醇单细胞蛋白质饲料
10.unit magnetic mass in the electromagnetic system电磁制中的单位磁质量
11.doped low magnetization YIG single crystal掺质低磁矩YIG单晶
12.single-heterojunction laser diode单异质结激光二极管
13.monorail double heterojunction diode单轨双异质结二极管
14.Quality Sleep "Rescues Memories"睡眠质量高，单词记得牢
15.The Properties of Bergman Metric Disk on Unit Disk单位圆盘上Bergman圆的性质
16.Study of One Cycle Controlled Single Phase Power Quality Conditioner;单周控制单相电能质量调节器的研究
17.The mass of one unit of volume of a material is called its density.物质单位体积的质量称之为密度。
18.synthesis of more complex substances from simpler ones.从简单物质合成复杂物质的过程。
相关短句/例句
single-medium element单媒质单元
3)iodine[英]["a??di:n][美]["a??"da?n]单质碘
1.Studies on the catalytic activity ofiodine in ester synthesis;单质碘对酯合成反应的催化活性研究
2.Butyraldehyde glycol acetal was synthesized from butyraldehyde and glycol by usingiodine as catalyst.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。
3.The method is based on fluorescence quenching of Rhodamine B by reaction of Cr(VI) with potassium iodide givingiodine(I2).基于六价铬与碘化钾反应生成了单质碘,碘可以使罗丹明B发生荧光猝灭,从而间接测定六价铬的含量。
4)silicon[英]["s?l?k?n][美]["s?l?k?n]单质硅
1.It has been discovered and demonstrated, via scanning electron microscope examination on 6 samples of broken glasses, that one important cause for the spontaneous breakage in tempered glass occurs as a result of the single-phase polycrystallinesilicon particles, rather than simply the nickel sulfide (NiS) particles that are commonly recognized to be the main cause for the spontaneous breakage.通过对 6 块玻璃自爆残片的电镜观察和成分分析,发现并证明了引起钢化玻璃自爆的主要原因不仅仅是传统认识中的硫化镍(NiS)微粒,很多情况是由单质硅微粒引起的。
5)elemental sulfur单质硫
1.Discharge performance of cathode materialelemental sulfur in LiCF_3SO_3/DOL+DME electrolyte;正极材料单质硫在LiCF_3SO_3/DOL+DME电解液中的放电性能
2.Study on improving properties ofelemental sulfur cathode materials by coating PANi;聚苯胺包覆对提高单质硫正极材料的性能研究
3.Research progress of theelemental sulfur positive material for lithium rechargeable battery;锂蓄电池单质硫正极材料的研究发展现状
6)iron[英]["a??n][美]["a??n]单质铁
1.Treatment of acid zinc wastewater by sulfate reducing bacteria cooperated withiron;硫酸盐还原菌与单质铁协同作用处理酸性含锌废水
2.In order to improve the effect of acid sulfate-containing wastewater treatment by using biological process, the characteristics of biological reduction system was studied by way of intermittent test, with emphasis on the addition ofiron (Fe0) for enhancing the sulfate reduction reaction.为提高生物法处理酸性硫酸盐废水的效果,采用间歇试验对生物还原体系的特性进行了研究,重点考察了加入单质铁(Fe0)对硫酸盐还原反应的强化作用。
延伸阅读
单质分子式：CAS号：性质：由一种元素的原子组成的以游离形式较稳定存在的物质。例如氧气O2、氯气C12、硫黄S8、铁Fe等。单质和元素是两个不同的概念。元素是具有相同核电荷数(质子数)的原子的统称。一种元素可能有几种单质，例如氧元素有氧和臭氧两种单质。
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